Mercedes-Benz E-Class vs. Porsche Boxster Feature Comparison

Model Year	2011	2011	2011	2013	2013
Model	E-Class	E-Class	E-Class	Boxster	Boxster
Trim	E350	E550	E63 AMG	Base	S
Engines (hide)
3.5L V6 DOHC-4v 268 hp@6000 258 lb-ft@2400
turbocharged 3.0L V6 Diesel DOHC-4v 241 hp@3600 443 lb-ft@1600
5.5L V8 DOHC-4v 382 hp@6000 391 lb-ft@2800
6.2L V8 DOHC-4v 518 hp@6200 465 lb-ft@5200
2.7L H6 DOHC-4v 265 hp@6700 206 lb-ft@4400
3.4L H6 DOHC-4v 315 hp@6700 266 lb-ft@4500
Transmissions (hide)
7-speed manually-shiftable automatic
7-speed automated manual
6-speed manual
Drivetrains (hide)
RWD
AWD
Tires (hide)
245/45HR17 tires
245/40ZR18 tires
265/35ZR18 tires
285/35ZR18 tires
255/40ZR18 tires
255/35ZR19 tires
285/30ZR19 tires
235/45ZR18 tires
265/45ZR18 tires
235/40ZR19 tires
235/35ZR20 tires
265/40ZR19 tires
265/35ZR20 tires
Audio Systems (hide)
Unbranded, 8 speakers
Harman/Kardon, 610W, 14 speakers (with subwoofer)
Unbranded, 50W, 4 speakers
Bose, 505W, 10 speakers (with subwoofer)
Unbranded, 185W, 7 speakers
Accessories (hide)
AC power outletPowers devices with a regular home electrical outlet. Limited wattage: forget about using it to power a blow drier.   [?]
Powers devices with a regular home electrical outlet. Limited wattage: forget about using it to power a blow drier.
Adaptive cruise control, all-speedAutomatically maintains set distance behind preceding vehicle as well as set speed. Can bring vehicle to a complete stop then accelerate back up to set speed. Replaces regular adaptive cruise control, and includes its value.   [?]
Automatically maintains set distance behind preceding vehicle as well as set speed. Can bring vehicle to a complete stop then accelerate back up to set speed. Replaces regular adaptive cruise control, and includes its value.
Cruise control
First-aid kit
Heated steering wheel
Parking guidance system - passiveIndicates best and actual steering angle while parking car.   [?]
Indicates best and actual steering angle while parking car.
Power front side windowsOften must be ordered with power rear side windows, if these are available.   [?]
Often must be ordered with power rear side windows, if these are available.
Power locks
Power rear side windows
Power trunk closerDecklid can be opened and closed using buttons inside the vehicle and on the keyfob.   [?]
Decklid can be opened and closed using buttons inside the vehicle and on the keyfob.
Proximity keyEnter and start the vehicle without removing the key from your pocket.   [?]
Enter and start the vehicle without removing the key from your pocket.
Remote keyless entryUnlock and lock the car using buttons on the keyfob.   [?]
Unlock and lock the car using buttons on the keyfob.
Remote window/roof operationOperate the power windows, sunroof, and/or convertible roof using buttons on the keyfob.   [?]
Operate the power windows, sunroof, and/or convertible roof using buttons on the keyfob.
Sunshade, rear, powerGreatly reduces the amount of sunlight entering the rear window. Includes the value of manual rear shade.   [?]
Greatly reduces the amount of sunlight entering the rear window. Includes the value of manual rear shade.
Sunshades, second rowGreatly reduce the amount of sunlight entering the rear side windows. Retract into rear doors.   [?]
Greatly reduce the amount of sunlight entering the rear side windows. Retract into rear doors.
Tilt/telescoping steering wheel, manual
Tilt/telescoping steering wheel, power
Universal garage door openerHomelink.   [?]
Homelink.
Wind blocker, smallRemovable or foldable barrier extends upward behind the front seatbacks, preventing cold air from entering the front seat area.   [?]
Removable or foldable barrier extends upward behind the front seatbacks, preventing cold air from entering the front seat area.
Brakes, Airbags, and Other Safety (hide)
4-wheel disc brakesRear disc brakes.   [?]
Rear disc brakes.
Active or whiplash-reducing head restraints, front seatsIf active, automatically move forward when the vehicle is rear-ended. Note: becoming less common.   [?]
If active, automatically move forward when the vehicle is rear-ended. Note: becoming less common.
AlarmOnly listed when pricing a single model because insufficient data for all cars.   [?]
Only listed when pricing a single model because insufficient data for all cars.
Antilock brakes (ABS)Automatically pulse the brakes in hard stops to prevent wheels from locking up, making it possible to brake and steer at the same time.   [?]
Automatically pulse the brakes in hard stops to prevent wheels from locking up, making it possible to brake and steer at the same time.
Automatic braking, high-speed or partialIf collision detection system senses imminent collision, applies moderate braking.   [?]
If collision detection system senses imminent collision, applies moderate braking.
Blind spot collision preventionSelectively applies the brakes to guide vehicle back into the original lane when detects that a lane change will cause a collision with a vehicle in the blind spot.   [?]
Selectively applies the brakes to guide vehicle back into the original lane when detects that a lane change will cause a collision with a vehicle in the blind spot.
Blind spot warning systemMirror-mounted lights indicate when another vehicle is in a blind spot.   [?]
Mirror-mounted lights indicate when another vehicle is in a blind spot.
Brake assistWhen a panic stop is sensed, fully applies the brakes.   [?]
When a panic stop is sensed, fully applies the brakes.
Brake- or yaw-sensor-initiated collision preparation systemPrepares seat belts for use when heavy braking or the yaw sensor suggests an imminent collision. Might also prep the brakes or roll up the windows.   [?]
Prepares seat belts for use when heavy braking or the yaw sensor suggests an imminent collision. Might also prep the brakes or roll up the windows.
Ceramic brake rotorsCeramic composite brake rotors.   [?]
Ceramic composite brake rotors.
Driver drowsiness monitorWarns when driver is drowsy and needs to pull over.   [?]
Warns when driver is drowsy and needs to pull over.
Fire extinguisher
Forward collision warningAlerts driver when approaching the preceding car too quickly.   [?]
Alerts driver when approaching the preceding car too quickly.
Front airbagsMandatory, in all cars.   [?]
Mandatory, in all cars.
Hill start assistApplies the brakes to hold the vehicle in place on an incline. Incomplete data, so only displayed when pricing a single vehicle.   [?]
Applies the brakes to hold the vehicle in place on an incline. Incomplete data, so only displayed when pricing a single vehicle.
Knee airbag, driver
Knee airbag, passenger
Lane departure preventionBrakes lightly applied to help prevent the vehicle from inadvertently traveling out of its intended lane.   [?]
Brakes lightly applied to help prevent the vehicle from inadvertently traveling out of its intended lane.
Lane departure warningAlerts driver when the vehicle seems to be wandering out of the lane.   [?]
Alerts driver when the vehicle seems to be wandering out of the lane.
Night visionCreates infrared-based image of the road ahead.   [?]
Creates infrared-based image of the road ahead.
Obstacle detection, frontBeeps signal distance to object in front of vehicle. Parking aid.   [?]
Beeps signal distance to object in front of vehicle. Parking aid.
Obstacle detection, rearBeeps signal distance to object behind vehicle. Parking aid.   [?]
Beeps signal distance to object behind vehicle. Parking aid.
Pedestrian detection, nightNight vision system detects pedestrians ahead of the car, then highlights them on the display.   [?]
Night vision system detects pedestrians ahead of the car, then highlights them on the display.
Performance braking system (optional)Only listed if not standard on all trims. No value because no way to compare across models.   [?]
Only listed if not standard on all trims. No value because no way to compare across models.
Radar- or camera-based collision preparation systemPrepares brakes (and sometimes also seat belts) for use when radar detects an imminent collision. Might also move seats and close windows. Early Lexus system used laser. Since automatic braking became common it has been unclear which models have this feat   [?]
Prepares brakes (and sometimes also seat belts) for use when radar detects an imminent collision. Might also move seats and close windows. Early Lexus system used laser. Since automatic braking became common it has been unclear which models have this feat
Rear side airbagsTorso-level second row airbags, usually contained in the rear door. Some also protect the head, but not as well as side curtain airbags.   [?]
Torso-level second row airbags, usually contained in the rear door. Some also protect the head, but not as well as side curtain airbags.
Rearview cameraRearview camera connected to display screen on the instrument panel. Often requires navigation system.   [?]
Rearview camera connected to display screen on the instrument panel. Often requires navigation system.
Roll bar
Rollover sensorDeploys extended duration side curtain airbags when the vehicle rolls over. Usually included on tall vehicles. Rare on others.   [?]
Deploys extended duration side curtain airbags when the vehicle rolls over. Usually included on tall vehicles. Rare on others.
Side curtain airbagsAirbags contained just above the window level. Except in cars without a rear seat usually cover first and second row.   [?]
Airbags contained just above the window level. Except in cars without a rear seat usually cover first and second row.
Stability controlSelectively applies the brakes to prevent excessive understeer or oversteer (spinning).   [?]
Selectively applies the brakes to prevent excessive understeer or oversteer (spinning).
Temporary spare tire
Tire-pressure monitorTwo types: a warning light when a tire is low on air and a pressure readout for each tire.   [?]
Two types: a warning light when a tire is low on air and a pressure readout for each tire.
Tires, run-flatCan be driven deflated for about 50 miles. Usually harm ride quality. Cars with these often have no spare tire.   [?]
Can be driven deflated for about 50 miles. Usually harm ride quality. Cars with these often have no spare tire.
Torque vectoring, brake-basedUses the brakes to channel torque to the outside wheels and counteract understeer. Similar to stability control, but proactive, and acting to improve cornering performance rather than prevent loss of control.   [?]
Uses the brakes to channel torque to the outside wheels and counteract understeer. Similar to stability control, but proactive, and acting to improve cornering performance rather than prevent loss of control.
Traction controlWhen a drive wheel slips, it is braked and/or engine power is reduced, restoring traction.   [?]
When a drive wheel slips, it is braked and/or engine power is reduced, restoring traction.
Cargo Management (hide)
Cargo net
Console with shifter
Console without shifter
Rear seat pass-throughUsually concealed behind a stowed armrest. Enables long items like skis to be carried without folding the rear seat.   [?]
Usually concealed behind a stowed armrest. Enables long items like skis to be carried without folding the rear seat.
Storage compartment under front seat(s)
Climate Control (hide)
Air conditioning
Automatic air recirculationAutomatically recirculates interior air when pollution is detected in outside air.   [?]
Automatically recirculates interior air when pollution is detected in outside air.
Automatic climate control, frontMaintains set temperature in front row. Requires air conditioning and does not include its value.   [?]
Maintains set temperature in front row. Requires air conditioning and does not include its value.
Dual-zone climate controlTemperature can be separately set for left and right sides of the passenger compartment. Requires air conditioning and does not include its value.   [?]
Temperature can be separately set for left and right sides of the passenger compartment. Requires air conditioning and does not include its value.
Heated windshield washer nozzles
Interior air filterFilters exterior air before it enters the passenger compartment. No default value because most cars have them, even in cases where they're not in the official list of features.   [?]
Filters exterior air before it enters the passenger compartment. No default value because most cars have them, even in cases where they're not in the official list of features.
Rain-sensing wipersWipers automatically turn on and adjust their speed based on input from a rain sensor.   [?]
Wipers automatically turn on and adjust their speed based on input from a rain sensor.
Rear air ventsVents at aft end of center console, in B-pillars, and/or in ceiling.   [?]
Vents at aft end of center console, in B-pillars, and/or in ceiling.
Rear defrost
Rear heat ductsDucts under front seats direct heated air to the second row.   [?]
Ducts under front seats direct heated air to the second row.
Residual heatProvides heat for an extended period of time after the engine has been cut off.   [?]
Provides heat for an extended period of time after the engine has been cut off.
Variable intermittent wipersTime between wipes can be precisely adjusted.   [?]
Time between wipes can be precisely adjusted.
Water-repellent front-door glassMakes rain bead up and roll off the windows.   [?]
Makes rain bead up and roll off the windows.
Drivetrain (hide)
Electronically-variable engine mounts (performance-oriented)Can vary engine mount stiffness to maximize performance or comfort.   [?]
Can vary engine mount stiffness to maximize performance or comfort.
Limited-slip rear differentialWhen one rear wheel spins, the differential locks up, sending power to the wheel with better traction.   [?]
When one rear wheel spins, the differential locks up, sending power to the wheel with better traction.
Engine / Motor (hide)
Automatic start / stopAutomatically cuts off the engine when the vehicle is stopped and restarts it when the driver lifts off the brake pedal. Not listed for hybrids, where it is generally part of the powertrain system.   [?]
Automatically cuts off the engine when the vehicle is stopped and restarts it when the driver lifts off the brake pedal. Not listed for hybrids, where it is generally part of the powertrain system.
Dual-mode exhaust, switchableValves open in the exhaust at high rpm and/or during brisk acceleration, for power boost and/or richer sound. Valves can also be opened with a switch.   [?]
Valves open in the exhaust at high rpm and/or during brisk acceleration, for power boost and/or richer sound. Valves can also be opened with a switch.
Mid-engine configurationThe engine is located behind the driver but ahead of the rear axle.   [?]
The engine is located behind the driver but ahead of the rear axle.
Raised top speed limiterPermits a higher top speed before fuel cutoff kicks in.   [?]
Permits a higher top speed before fuel cutoff kicks in.
Regenerative brakingSmart alternator recharges battery only while braking, to improve fuel economy.   [?]
Smart alternator recharges battery only while braking, to improve fuel economy.
Sport exhaustChanges sound of exhaust and/or appearance of the tips. In some cases might slightly improve performance.   [?]
Changes sound of exhaust and/or appearance of the tips. In some cases might slightly improve performance.
Exterior (hide)
Additional chrome trimOnly listed if not standard on all trims. No value because no way to compare across models.   [?]
Only listed if not standard on all trims. No value because no way to compare across models.
Body kitSide skirts and possibly a front air dam and rear apron.   [?]
Side skirts and possibly a front air dam and rear apron.
Bodyside moldingsMoldings on the bodysides, to protect against door dings in parking lots.   [?]
Moldings on the bodysides, to protect against door dings in parking lots.
Bright-finished exhaust tip(s)Increasingly often these are not actually connected to the exhaust.   [?]
Increasingly often these are not actually connected to the exhaust.
Carbon fiber rear spoiler
Metallic paint (extra cost)
Panoramic sunroofFront glass panel retracts over a fixed glass roof panel. Entire unit covers nearly the entire roof.   [?]
Front glass panel retracts over a fixed glass roof panel. Entire unit covers nearly the entire roof.
Power convertible top
Rear spoilerCan be small lip spoiler or a larger raised spoiler.   [?]
Can be small lip spoiler or a larger raised spoiler.
Retractable rear spoilerSpoiler extends automatically at high speeds. Otherwise flush with body. Can be manually extended and retracted.   [?]
Spoiler extends automatically at high speeds. Otherwise flush with body. Can be manually extended and retracted.
Second rear spoilerIn addition to first rear spoiler.   [?]
In addition to first rear spoiler.
Sunroof
Gas Guzzler Tax (hide)
1700
Infotainment (hide)
App supportTouchscreen and/or voice control over apps that can include online search, Facebook, Twitter, Pandora, OpenTable, and MovieTickets.com. Requires connected compatible phone. Fees may apply after first three years.    [?]
Touchscreen and/or voice control over apps that can include online search, Facebook, Twitter, Pandora, OpenTable, and MovieTickets.com. Requires connected compatible phone. Fees may apply after first three years.
Audio controls on steering wheel
Aux inputJack for an iPod or similar device. No value because of incomplete data. Will soon be standard on nearly every car.   [?]
Jack for an iPod or similar device. No value because of incomplete data. Will soon be standard on nearly every car.
Bluetooth audio streamingUses Bluetooth rather than a cable to integrate audio device. Requires compatible audio device and/or phone.   [?]
Uses Bluetooth rather than a cable to integrate audio device. Requires compatible audio device and/or phone.
Bluetooth cell phone linkEnables hands-free communication by wirelessly connecting a cell phone to a microphone and the vehicle's stereo speakers.   [?]
Enables hands-free communication by wirelessly connecting a cell phone to a microphone and the vehicle's stereo speakers.
CD changer, in-dashIncludes CD player.   [?]
Includes CD player.
CD player
DVD-Audio-compatible playerAudio system capable of playing DVD-Audio discs.   [?]
Audio system capable of playing DVD-Audio discs.
DVD-compatible playerAudio system capable of playing DVDs on a front-row screen. Inoperative when the vehicle is moving. No value because of incomplete data.   [?]
Audio system capable of playing DVDs on a front-row screen. Inoperative when the vehicle is moving. No value because of incomplete data.
Entertainment system with dual headrest screensA DVD player and two front headrest-mounted screens.   [?]
A DVD player and two front headrest-mounted screens.
HD radioHigh-definition radio, which broadcasts a digital signal. Free, no subscription fees.   [?]
High-definition radio, which broadcasts a digital signal. Free, no subscription fees.
iPod integrationIntegrates an iPod with the vehicle's controls and speakers. Usually included if there is a USB port, but can also rely on a proprietary port.   [?]
Integrates an iPod with the vehicle's controls and speakers. Usually included if there is a USB port, but can also rely on a proprietary port.
Media driveBuilt-in drive with at least 10 GB of storage for MP3 and other audio files.   [?]
Built-in drive with at least 10 GB of storage for MP3 and other audio files.
MP3-compatible playerAudio system capable of playing discs with MP3 files.   [?]
Audio system capable of playing discs with MP3 files.
Navigation systemScreen-based navigation system.   [?]
Screen-based navigation system.
Off-road navigation systemEnables navigation even without roads. Requires and does not include the value of a navigation system.   [?]
Enables navigation even without roads. Requires and does not include the value of a navigation system.
Satellite radioXM or Sirius. Includes a subscription for three to six months, after which monthly fees apply.   [?]
XM or Sirius. Includes a subscription for three to six months, after which monthly fees apply.
SD Card slotSD, CF, PCMCIA, or other digital media reader.   [?]
SD, CF, PCMCIA, or other digital media reader.
Surround sound
Telematics service, such as OnStarIn-vehicle security, communications, and diagnostics system. For 2011 and newer cars often includes a remote app. Monthly fee after the first 1-12 months.   [?]
In-vehicle security, communications, and diagnostics system. For 2011 and newer cars often includes a remote app. Monthly fee after the first 1-12 months.
Traffic informationInformation about traffic conditions. Monthly fee after first 3-12 months.   [?]
Information about traffic conditions. Monthly fee after first 3-12 months.
USB portOften permits an iPod or phone to be integrated into the vehicle's entertainment system and controls.   [?]
Often permits an iPod or phone to be integrated into the vehicle's entertainment system and controls.
Voice control for nav and audioSometimes also includes voice control over climate control system.   [?]
Sometimes also includes voice control over climate control system.
Voice recorder
Weatherband radioIncludes frequencies for weather channels. Only listed when pricing a single model because incomplete data for all model.   [?]
Includes frequencies for weather channels. Only listed when pricing a single model because incomplete data for all model.
Instruments, Lights, and Mirrors (hide)
Analog clock
Auto-dimming driver-side mirrorDriver-side exterior mirror automatically dims when hit by headlights of following vehicle.   [?]
Driver-side exterior mirror automatically dims when hit by headlights of following vehicle.
Auto-dimming headlightsHigh beams automatically turned on and off.   [?]
High beams automatically turned on and off.
Auto-dimming passenger-side mirrorPassenger-side rearview mirror automatically dims when hit by headlights of following vehicle.   [?]
Passenger-side rearview mirror automatically dims when hit by headlights of following vehicle.
Auto-dimming rearview mirrorInterior rearview mirror automatically dims when hit by headlights of following vehicle.   [?]
Interior rearview mirror automatically dims when hit by headlights of following vehicle.
Automatic headlightsHeadlights automatically turn on and off. Includes value of automatic-off headlights.   [?]
Headlights automatically turn on and off. Includes value of automatic-off headlights.
ChronometerStopwatch, lap timer. Usually includes an analog clock.   [?]
Stopwatch, lap timer. Usually includes an analog clock.
CompassWe haven't given this feature a value because it's hard to tell which cars have it.   [?]
We haven't given this feature a value because it's hard to tell which cars have it.
Fog light, rearMake it easier for following vehicles to see the vehicle in fog.   [?]
Make it easier for following vehicles to see the vehicle in fog.
Fog lightsLight wide area close in front of the vehicle.   [?]
Light wide area close in front of the vehicle.
Headlight washers
Heated mirrorsClears ice and fog from mirrors.   [?]
Clears ice and fog from mirrors.
Illuminated visor mirror, driverIncludes value of non-illuminated vanity mirror.   [?]
Includes value of non-illuminated vanity mirror.
Illuminated visor mirror, passengerIncludes value of non-illuminated vanity mirror.   [?]
Includes value of non-illuminated vanity mirror.
Interior ambient lightingLEDs cast a soft glow over and/or highlight parts of the interior.   [?]
LEDs cast a soft glow over and/or highlight parts of the interior.
LED tail lightsOnly listed if not standard on all trims. No value because no way to compare across models.   [?]
Only listed if not standard on all trims. No value because no way to compare across models.
Map lightsFront row reading lights.   [?]
Front row reading lights.
Mirror tilt-down in reverseOne or both exterior mirrors tilt down when the transmission is in reverse, to provide view of the curb.   [?]
One or both exterior mirrors tilt down when the transmission is in reverse, to provide view of the curb.
Outside temperature display
Performance meterMeasures and displays lateral acceleration. Some also measure and display 0-60, quarter mile, etc.   [?]
Measures and displays lateral acceleration. Some also measure and display 0-60, quarter mile, etc.
Perimeter approach lightingArea around the vehicle is illuminated when the vehicle is remotely unlocked.   [?]
Area around the vehicle is illuminated when the vehicle is remotely unlocked.
Power mirrorsIncludes value of manual remote mirrors.   [?]
Includes value of manual remote mirrors.
Power-folding mirrorsMirrors fold and unfold with the touch of a button inside the vehicle. Good for narrow roads and parking lots.   [?]
Mirrors fold and unfold with the touch of a button inside the vehicle. Good for narrow roads and parking lots.
Rear reading lights
Steering-linked headlightsHeadlights swivel when steering wheel is turned.   [?]
Headlights swivel when steering wheel is turned.
TachometerReports engine speed.   [?]
Reports engine speed.
Trip computerReports average fuel economy, and perhaps also instantaneous fuel economy, distance to empty, average speed, and other stats.   [?]
Reports average fuel economy, and perhaps also instantaneous fuel economy, distance to empty, average speed, and other stats.
Turn signals on or near mirrors
Xenon HID headlightsProvide a brighter, whiter light than halogen headlights.   [?]
Provide a brighter, whiter light than halogen headlights.
Seats and Interior Trim (hide)
Front buckets
Front sport buckets
Second-row 3-person bench
Second-row 2-section 3-person split bench
Aluminum trimReal aluminum trim on instrument panel, door panels, and/or center console. Deleted by wood trim even if they appear together.   [?]
Real aluminum trim on instrument panel, door panels, and/or center console. Deleted by wood trim even if they appear together.
Automatic seat bolsters, driverThe outside seatback bolster automatically firms up in hard turns.   [?]
The outside seatback bolster automatically firms up in hard turns.
Carbon fiber / leather-wrapped steering wheel
Carbon fiber trimWon't be listed in conjunction with wood or aluminum trim even if they are available together.   [?]
Won't be listed in conjunction with wood or aluminum trim even if they are available together.
Center armrest(s), front row
Center armrest(s), second row
Cooled or ventilated front seats
Door sill trim plates
Floor mats
Folding second row seatsSeat folds to enlarge cargo area. Unless the seat is also removable, it usually folds flat or nearly flat.   [?]
Seat folds to enlarge cargo area. Unless the seat is also removable, it usually folds flat or nearly flat.
Heated front seats
Heated second row seats
Illuminated carbon fiber door sill trim plates
Illuminated door sill trim plates
Leather door panel trim
Leather seating surfacesSeating surfaces are trimmed in leather; other upholstery tends to be leatherette.   [?]
Seating surfaces are trimmed in leather; other upholstery tends to be leatherette.
Leather upholstery, extended coverageLeather beyond the seating surfaces, door panels, and IP top. No additional value over leather upholstery because no way to standardize across all models.   [?]
Leather beyond the seating surfaces, door panels, and IP top. No additional value over leather upholstery because no way to standardize across all models.
Leather-wrapped steering wheel
Manual height adjuster, driver seat
Manual height adjuster, passenger seat
Massage, driver seatPower lumbar or vibration used to massage lower back.   [?]
Power lumbar or vibration used to massage lower back.
Memory system, driver seat
Memory system, passenger seat
Metal pedals
No leather in second row
Power 4-way lumbar adjuster, driver seatLower back support power-adjustable vertically as well as in and out.   [?]
Lower back support power-adjustable vertically as well as in and out.
Power 4-way lumbar adjuster, passenger seatLower back support power-adjustable vertically as well as in and out.   [?]
Lower back support power-adjustable vertically as well as in and out.
Power fore-aft adjuster, driver seat
Power fore-aft adjuster, passenger seat
Power headrest height adjuster, driver seat
Power headrest height adjuster, passenger seat
Power height adjuster, driver seat
Power height adjuster, passenger seat
Power recliner, driver seat
Power recliner, passenger seat
Power seatback bolsters, driver seatPower adjustable bolsters on the seatback, to provide lateral support in hard turns.   [?]
Power adjustable bolsters on the seatback, to provide lateral support in hard turns.
Power seatback bolsters, passenger seatPower adjustable bolsters on the seatback, to provide lateral support in hard turns.   [?]
Power adjustable bolsters on the seatback, to provide lateral support in hard turns.
Power thigh bolsters, driver seatPower adjustable bolsters on the seat cushion, to prevent sliding out of the seat in hard turns.   [?]
Power adjustable bolsters on the seat cushion, to prevent sliding out of the seat in hard turns.
Power thigh bolsters, passenger seatPower adjustable bolsters on the seat cushion, to prevent sliding out of the seat in hard turns.   [?]
Power adjustable bolsters on the seat cushion, to prevent sliding out of the seat in hard turns.
Power thigh support length adjuster, driver seatPower-adjustable cushion length; provides better support for long legs.   [?]
Power-adjustable cushion length; provides better support for long legs.
Power thigh support length adjuster, passenger seatPower-adjustable cushion length; provides better support for long legs.   [?]
Power-adjustable cushion length; provides better support for long legs.
Power tilt adjuster, driver seatPower tilting seat cushion; can take the form of a second height adjustment.   [?]
Power tilting seat cushion; can take the form of a second height adjustment.
Power tilt adjuster, passenger seatPower tilting seat cushion; can take the form of a second height adjustment.   [?]
Power tilting seat cushion; can take the form of a second height adjustment.
Power-folding headrests, second row seatsFold at press of a button on the instrument panel, to improve rearward visibility.   [?]
Fold at press of a button on the instrument panel, to improve rearward visibility.
Synthetic leather seating surfacesA.k.a vinyl, leatherette, MB-Tex, NuLuxe.   [?]
A.k.a vinyl, leatherette, MB-Tex, NuLuxe.
Synthetic suede steering wheelSynthetic suede steering wheel rim.   [?]
Synthetic suede steering wheel rim.
Two-tone upholstery (optional)Only listed if not standard on all trims. No value because no way to compare across models.   [?]
Only listed if not standard on all trims. No value because no way to compare across models.
Upgraded leather upholsteryNo additional value over leather upholstery because no way to standardize across all models.   [?]
No additional value over leather upholstery because no way to standardize across all models.
Upholstered instrument panel, leather
Wood trimReal wood trim on instrument panel, door panels, and/or center console.   [?]
Real wood trim on instrument panel, door panels, and/or center console.
Wood/leather-wrapped steering wheelReal wood comprises part of the steering wheel rim.   [?]
Real wood comprises part of the steering wheel rim.
Suspension, Wheels, and Tires (hide)
Adaptive dampers - electricalShocks that electrically adjust their firmness based on sensor readings of the road surface. The driver might also be able to select a \"sport\" setting.   [?]
Shocks that electrically adjust their firmness based on sensor readings of the road surface. The driver might also be able to select a \"sport\" setting.
Adaptive dampers - mechanicalShocks mechanically adjust firmness based on direct road inputs. Not driver adjustable.   [?]
Shocks mechanically adjust firmness based on direct road inputs. Not driver adjustable.
Air suspension, auto-leveling and height adjustableAir springs automatically level the vehicle and enable manual adjustment of ride height.   [?]
Air springs automatically level the vehicle and enable manual adjustment of ride height.
Alloy wheels
Alloy wheels, optional designSame value as regular alloy wheels because no way to compare across models.   [?]
Same value as regular alloy wheels because no way to compare across models.
Electronic systems calibration selectorVaries throttle, steering, ABS, and/or stability control calibration.   [?]
Varies throttle, steering, ABS, and/or stability control calibration.
Rear air springs, auto-levelingAir springs maintain the rear ride height.   [?]
Air springs maintain the rear ride height.
Sport suspension (upgrade)Only listed if not standard on all trims. No value because no way to compare across models.   [?]
Only listed if not standard on all trims. No value because no way to compare across models.
Ultra-sport suspension (upgrade)Only listed if not standard on all trims. No value because no way to compare across models.   [?]
Only listed if not standard on all trims. No value because no way to compare across models.
Variable assist steering (optional)Only listed if not standard on all trims. No value because no way to compare across models.   [?]
Only listed if not standard on all trims. No value because no way to compare across models.
Wheel locksLug nuts that can only be removed using a special key. Prevents theft of wheels.   [?]
Lug nuts that can only be removed using a special key. Prevents theft of wheels.
Transmission (hide)
Launch controlElectronically controls engine and transmission for perfect launch.   [?]
Electronically controls engine and transmission for perfect launch.
Steering-wheel-mounted transmission controlsPaddles or buttons that can be used to manually shift the transmission. Only listed when optional or not always included with an automatic transmission.   [?]
Paddles or buttons that can be used to manually shift the transmission. Only listed when optional or not always included with an automatic transmission.

Mercedes-Benz E-Class: E350 Mercedes-Benz E-Class: E550 Mercedes-Benz E-Class: E63 AMG Porsche Boxster: Base Porsche Boxster: S

AMG Line Exterior

Features
265/35ZR18 tires

Premium 1 Package

Features
Rearview camera
Voice control for nav and audio
Traffic information
Media drive
Navigation system
Media drive
iPod integration
Navigation system
Heated front seats
Satellite radio
Harman/Kardon, 610W, 14 speakers (with subwoofer)

Driver Assistance Package

Features
Blind spot warning system
Lane departure prevention
Automatic braking, high-speed or partial
Forward collision warning
Blind spot collision prevention
Radar- or camera-based collision preparation system
Lane departure warning
Adaptive cruise control, all-speed

Premium 2 Package

Features
Power trunk closer

Premium 2 Package

Features
Auto-dimming headlights
Proximity key
Steering-linked headlights
Xenon HID headlights
Headlight washers

Premium 1 Package

Features
Sunshade, rear, power

Warmth & Comfort Package

Features
Folding second row seats
Rear seat pass-through
Second-row 2-section 3-person split bench

Active multicontour front seats

Features
Power thigh support length adjuster, driver seat
Automatic seat bolsters, driver
Massage, driver seat

Acoustic Comfort Package

Features
Alloy wheels, optional design

AMG Line Exterior

Features
265/35ZR18 tires

Premium 1 Package

Features
Rearview camera
Voice control for nav and audio
Traffic information
Media drive
Navigation system
Media drive
iPod integration
Navigation system
Heated front seats
Satellite radio
Harman/Kardon, 610W, 14 speakers (with subwoofer)

Driver Assistance Package

Features
Blind spot warning system
Lane departure prevention
Automatic braking, high-speed or partial
Forward collision warning
Blind spot collision prevention
Radar- or camera-based collision preparation system
Lane departure warning
Adaptive cruise control, all-speed

Premium 2 Package

Features
Power trunk closer

Premium 2 Package

Features
Auto-dimming headlights
Proximity key
Steering-linked headlights
Xenon HID headlights
Headlight washers

Advanced Lighting Package

Features
Cooled or ventilated front seats

Warmth & Comfort Package

Features
Folding second row seats
Rear seat pass-through
Second-row 2-section 3-person split bench

Active multicontour front seats

Features
Power thigh support length adjuster, driver seat
Automatic seat bolsters, driver
Massage, driver seat

Acoustic Comfort Package

Features
Alloy wheels, optional design

AMG Performance Package

Features
Raised top speed limiter
Ultra-sport suspension (upgrade)
Limited-slip rear differential
285/30ZR19 tires

Driver Assistance Package

Features
Blind spot warning system
Lane departure prevention
Automatic braking, high-speed or partial
Forward collision warning
Blind spot collision prevention
Radar- or camera-based collision preparation system
Lane departure warning
Adaptive cruise control, all-speed

Premium 2 Package

Features
Power trunk closer

Premium 2 Package

Features
Auto-dimming headlights
Proximity key
Steering-linked headlights
Xenon HID headlights
Headlight washers

Premium 1 Package

Features
Rearview camera
Voice control for nav and audio
Traffic information
Media drive
Navigation system
Media drive
iPod integration
Navigation system
Heated front seats
Satellite radio
Harman/Kardon, 610W, 14 speakers (with subwoofer)

Active multicontour front seats

Features
Power thigh support length adjuster, driver seat
Automatic seat bolsters, driver
Massage, driver seat

Advanced Lighting Package

Features
Cooled or ventilated front seats

Infotainment Package

Features
Traffic information
Off-road navigation system
Media drive
iPod integration
USB port
Navigation system
DVD-Audio-compatible player
Unbranded, 185W, 7 speakers

Power sport seats

Features
Power tilt adjuster, driver seat
Power 4-way lumbar adjuster, driver seat
Power thigh support length adjuster, driver seat
Power fore-aft adjuster, passenger seat
Power 4-way lumbar adjuster, passenger seat
Power thigh support length adjuster, passenger seat
Memory system, driver seat
Power height adjuster, passenger seat
Power tilt adjuster, passenger seat
Tilt/telescoping steering wheel, power
Power fore-aft adjuster, driver seat
Power height adjuster, driver seat

Convenience Package

Features
Residual heat
Automatic air recirculation
Automatic climate control, front
Heated front seats
Dual-zone climate control

Auto-dimming mirrors

Features
Auto-dimming passenger-side mirror
Auto-dimming rearview mirror
Rain-sensing wipers
Auto-dimming driver-side mirror

Sport Chrono Package

Features
Electronically-variable engine mounts (performance-oriented)
Chronometer
Electronic systems calibration selector
Launch control

Porsche Dynamic Light System

Features
Steering-linked headlights
Headlight washers
Headlight washers

Sport Chrono Package

Features
Performance meter

Sport seats plus

Features
Front sport buckets

Leather Package

Features

Adaptive sport seats plus

Features
Power seatback bolsters, passenger seat
Power thigh bolsters, driver seat
Power seatback bolsters, driver seat
Power thigh bolsters, passenger seat

Power sport seats

Features
Power tilt adjuster, driver seat
Power 4-way lumbar adjuster, driver seat
Power thigh support length adjuster, driver seat
Power fore-aft adjuster, passenger seat
Power 4-way lumbar adjuster, passenger seat
Power thigh support length adjuster, passenger seat
Memory system, driver seat
Power height adjuster, passenger seat
Power tilt adjuster, passenger seat
Tilt/telescoping steering wheel, power
Power fore-aft adjuster, driver seat
Power height adjuster, driver seat

Convenience Package

Features
Residual heat
Automatic air recirculation
Automatic climate control, front
Heated front seats
Dual-zone climate control

Auto-dimming mirrors

Features
Auto-dimming passenger-side mirror
Auto-dimming rearview mirror
Rain-sensing wipers
Auto-dimming driver-side mirror

Sport Chrono Package

Features
Electronically-variable engine mounts (performance-oriented)
Chronometer
Electronic systems calibration selector
Launch control

Infotainment Package

Features
Traffic information
Off-road navigation system
Media drive
iPod integration
USB port
Navigation system
DVD-Audio-compatible player
Unbranded, 185W, 7 speakers

Porsche Dynamic Light System

Features
Steering-linked headlights
Headlight washers
Headlight washers

Sport Chrono Package

Features
Performance meter

Sport seats plus

Features
Front sport buckets

Adaptive sport seats plus

Features
Power seatback bolsters, passenger seat
Power thigh bolsters, driver seat
Power seatback bolsters, driver seat
Power thigh bolsters, passenger seat