

Model Year | 2007 | 2007 | 2018 | 2018 | 2018 |
Model | A8 / S8 | A8 / S8 | Model X | Model X | Model X |
Trim | A8 L | A8 L W12 | 75D | 100D | P100D |
Engines | |||||
Transmissions | |||||
Drivetrains | |||||
Tires | |||||
Audio Systems | |||||
Accessories | |||||
Automatically maintains set distance behind preceding vehicle as well as set speed. Minimum speed around 30 mph. Replaces regular cruise control, and includes its value. | |||||
Automatically maintains speed based on preceding car and speed limit signs. Can bring vehicle to a complete stop then accelerate back up to set speed. Replaces regular adaptive cruise control, and includes its value. | |||||
Change lanes by tapping turn signal. | |||||
Car enters and exits parking spaces and garages without a driver in the car. Controlled by key fob or remote app. | |||||
Tell the car where to go and it does the rest. Subject to future system validation and regulatory approval. | |||||
Release latch by waving a foot beneath the bumper or a hand near a sensor. | |||||
The car autonomously searches for a parking spot before parking itself. Subject to future system validation and regulatory approval. | |||||
Pulls door tight after latch is engaged. Door can be shut with very little effort. | |||||
The front doors open by sensing location and path of the key-holder. Close and latch when the brake is depressed. Programmable. | |||||
Often must be ordered with power rear side windows, if these are available. | |||||
Rear doors open upward. Both can be opened and closed using buttons inside the vehicle and on the keyfob. Sensors detect obstacles. | |||||
Liftgate can be opened and closed using buttons inside the vehicle and on the keyfob. | |||||
Pulls decklid / liftgate tight after latch is engaged. Door can be shut with very little effort. | |||||
Decklid can be opened and closed using buttons inside the vehicle and on the keyfob. | |||||
Enter and start the vehicle without removing the key from your pocket. | |||||
Check on car and remotely control various functions (remote start, locks, lights, and/or HVAC) from a telephone or computer. Can require a monthly fee. | |||||
Unlock and lock the car using buttons on the keyfob. | |||||
Operate the power windows, sunroof, and/or convertible roof using buttons on the keyfob. | |||||
Automatically steers the vehicle into a parking space. Driver operates the transmission, and sometimes also the brake and accelerator. | |||||
The car steers itself with no requirement that the driver keep a hand on the steering wheel. Can require that the driver take over at any time. | |||||
Greatly reduces the amount of sunlight entering the rear window. Includes the value of manual rear shade. | |||||
Greatly reduce the amount of sunlight entering the rear side windows. Retract into rear doors. | |||||
Homelink. | |||||
Brakes, Airbags, and Other Safety | |||||
Rear disc brakes. | |||||
If active, automatically move forward when the vehicle is rear-ended. Note: becoming less common. | |||||
Only listed when pricing a single model because insufficient data for all cars. | |||||
Automatically pulse the brakes in hard stops to prevent wheels from locking up, making it possible to brake and steer at the same time. | |||||
If collision detection system senses imminent collision, applies moderate braking. | |||||
When a panic stop is sensed, fully applies the brakes. | |||||
Alerts driver when approaching the preceding car too quickly. | |||||
Mandatory, in all cars. | |||||
Alerts driver when the vehicle seems to be wandering out of the lane. | |||||
Beeps signal distance to object in front of vehicle. Parking aid. | |||||
Beeps signal distance to object behind vehicle. Parking aid. | |||||
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 camera connected to display screen on the instrument panel. Often requires navigation system. | |||||
Deploys extended duration side curtain airbags when the vehicle rolls over. Usually included on tall vehicles. Rare on others. | |||||
Airbags contained just above the window level. Except in cars without a rear seat usually cover first and second row. | |||||
Selectively applies the brakes to prevent excessive understeer or oversteer (spinning). | |||||
Two types: a warning light when a tire is low on air and a pressure readout for each tire. | |||||
When a drive wheel slips, it is braked and/or engine power is reduced, restoring traction. | |||||
Automatically applies a front brake to counteract sway induced by a trailer. | |||||
Cargo Management | |||||
Hitch rated for up to 5,000 pounds. Capacity of the vehicle could be lower. | |||||
Usually concealed behind a stowed armrest. Enables long items like skis to be carried without folding the rear seat. | |||||
Second-row center console that rises to armrest height, and usually includes storage. | |||||
Sack attached to rear seat pass-through. Keeps dirty skis from messing up the interior. | |||||
Large storage area beneath the load floor, often compartmentalized. | |||||
Includes seven-wire harness, necessary for larger trailers. | |||||
Climate Control | |||||
Maintains set temperature in front row. 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. | |||||
Highly effective interior air filter. | |||||
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. | |||||
Wipers automatically turn on and adjust their speed based on input from a rain sensor. | |||||
Vents at aft end of center console, in B-pillars, and/or in ceiling. | |||||
Maintains set temperature in rear passenger area by providing heated or cooled air through vents in the center console, B-pillars, and/or ceiling. Replaces and includes value of rear air vents with manual controls. | |||||
Requires and does not include the value of rear air vents. | |||||
Ducts under front seats direct heated air to the second row. | |||||
A second evaporator provides cool air to rear vents. Does not include the value of these vents. Includes rear heater. | |||||
Provides heat for an extended period of time after the engine has been cut off. | |||||
Heating elements defrost area where front wipers rest. | |||||
Engine / Motor | |||||
Triple level charger, fastest charge times with 220V source. | |||||
Allows for quick charging to 80 percent capacity at 440V charging stations. Using such chargers frequently might degrade the battery. | |||||
Increases charge rate when using an upgraded at-home charger. | |||||
Exterior | |||||
Protective cladding extending partly onto the doors. | |||||
Moldings on the bodysides, to protect against door dings in parking lots. | |||||
Increasingly often these are not actually connected to the exhaust. | |||||
One or more glass panels in the roof that cannot be opened or removed. | |||||
Reduces interior noise, prevents side windows from shattering. | |||||
The windshield extends over the driver's head, for an especially open view forward. | |||||
Spoiler extends automatically at high speeds. Otherwise flush with body. Can be manually extended and retracted. | |||||
Solar cells power fans that help keep the car's interior cool when it is parked. With electric vehicles also provide a negligible amount of energy for running the car. | |||||
Extensions to the wheel opening, both decorative and protective. | |||||
Gas Guzzler Tax | |||||
Infotainment | |||||
Higher speed Internet connection. Monthly fee after trial period. | |||||
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. | |||||
Uses Bluetooth rather than a cable to integrate audio device. Requires compatible audio device and/or phone. | |||||
Enables hands-free communication by wirelessly connecting a cell phone to a microphone and the vehicle's stereo speakers. | |||||
CD changer in the glove compartment, trunk, or cargo area, beyond easy reach. Can be in addition to an in-dash CD player. | |||||
A DVD player and screen mounted at the rear of the center console. Often includes a pair of wireless headphones. | |||||
High-definition radio, which broadcasts a digital signal. Free, no subscription fees. | |||||
Connects car to the Internet to update systems, download information, and/or browse. Includes internal modem, usually requires car-specific broadband service with monthly fee. | |||||
Screen-based navigation system. | |||||
Alerts driver when the car is moving out of range of any quick charging station. | |||||
XM or Sirius. Includes a subscription for three to six months, after which monthly fees apply. | |||||
Often permits an iPod or phone to be integrated into the vehicle's entertainment system and controls. | |||||
Sometimes also includes voice control over climate control system. | |||||
Instruments, Lights, and Mirrors | |||||
Driver-side exterior mirror automatically dims when hit by headlights of following vehicle. | |||||
High beams automatically turned on and off. | |||||
Passenger-side rearview mirror automatically dims when hit by headlights of following vehicle. | |||||
Interior rearview mirror automatically dims when hit by headlights of following vehicle. | |||||
Headlights automatically turn on and off. Includes value of automatic-off headlights. | |||||
Lights illuminate area just ahead and to the side of the vehicle when the turn signals are used or the steering wheel is turned. | |||||
Make it easier for following vehicles to see the vehicle in fog. | |||||
Light wide area close in front of the vehicle. | |||||
Clears ice and fog from mirrors. | |||||
Includes value of non-illuminated vanity mirror. | |||||
Includes value of non-illuminated vanity mirror. | |||||
LEDs cast a soft glow over and/or highlight parts of the interior. | |||||
The information displayed by the instruments can be customized. Color display(s) of at least 20 square inches. | |||||
Standard or optional in some hybrid vehicles. Fancy display of power flows, enhanced trip computer information. | |||||
LED headlights last longer and use less energy than other types. | |||||
Only listed if not standard on all trims. No value because no way to compare across models. | |||||
Front row reading lights. | |||||
One or both exterior mirrors tilt down when the transmission is in reverse, to provide view of the curb. | |||||
Area around the vehicle is illuminated when the vehicle is remotely unlocked. | |||||
Includes value of manual remote mirrors. | |||||
Mirrors fold and unfold with the touch of a button inside the vehicle. Good for narrow roads and parking lots. | |||||
Displays the current speed limit. Included with nav on an increasing number of cars. No feature value here because incomplete info on availability. | |||||
Headlights swivel when steering wheel is turned. | |||||
Reports engine speed. | |||||
Reports average fuel economy, and perhaps also instantaneous fuel economy, distance to empty, average speed, and other stats. | |||||
Provide a brighter, whiter light than halogen headlights. | |||||
Seats and Interior Trim | |||||
Won't be listed in conjunction with wood or aluminum trim even if they are available together. | |||||
Seat folds to enlarge cargo area. Unless the seat is also removable, it usually folds flat or nearly flat. | |||||
Seating surfaces are trimmed in leather; other upholstery tends to be leatherette. | |||||
Leather beyond the seating surfaces, door panels, and IP top. No additional value over leather upholstery because no way to standardize across all models. | |||||
Power lumbar or vibration used to massage lower back. | |||||
Power lumbar or vibration used to massage lower back. | |||||
Lower back support power-adjustable vertically as well as in and out. | |||||
Lower back support power-adjustable vertically as well as in and out. | |||||
Lower back support power-adjustable vertically as well as in and out. | |||||
Power-adjustable cushion length; provides better support for long legs. | |||||
Power-adjustable cushion length; provides better support for long legs. | |||||
Power 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 tilting seat cushion; can take the form of a second height adjustment. | |||||
The upper part of the seatback be be adjusted separately from the lower part. | |||||
The upper part of the seatback be be adjusted separately from the lower part; especially useful when the seat is heavily reclined, to better support the upper back. | |||||
Only listed if not standard on all trims. No value because no way to compare across models. | |||||
A.k.a vinyl, leatherette, MB-Tex, NuLuxe. | |||||
Usually also includes synthetic suede on the pillars. | |||||
No additional value over leather upholstery because no way to standardize across all models. | |||||
Real wood trim on instrument panel, door panels, and/or center console. | |||||
Real wood comprises part of the steering wheel rim. | |||||
Suspension, Wheels, and Tires | |||||
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. | |||||
Air springs automatically level the vehicle and enable manual adjustment of ride height. | |||||
Varies throttle, steering, ABS, and/or stability control calibration. | |||||
Only listed if not standard on all trims. No value because no way to compare across models. | |||||
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. |
What Our Members Are Saying about the Available Features of the 2007 Audi A8 / S8
6-speed shiftable automatic AWD
What Our Members Are Saying about the Available Features of the 2018 Tesla Model X
None of our members have yet commented on the available features of the 2018 Tesla Model X.
Be the first!