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Model Year | 2013 | 2013 | 2013--2013 | 2013--2013 | 2013--2013 |
Model | A4 / S4 | A4 / S4 | Z4 | Z4 | Z4 |
Trim | A4 2.0T | S4 3.0T | sDrive28i | sDrive35i | sDrive35is |
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. | |||||
Often must be ordered with power rear side windows, if these are available. | |||||
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. | |||||
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. | |||||
Automatically brakes car to avoid low-speed collisions. | |||||
Mirror-mounted lights indicate when another vehicle is in a blind spot. | |||||
When a panic stop is sensed, fully applies the brakes. | |||||
Applies the brakes to a slipping drive wheel to transfer torque to the other side, simulating the effect of a limited-slip differential. We haven't identified all applications, often implied by traction control. | |||||
Alerts driver when approaching the preceding car too quickly. | |||||
Mandatory, in all cars. | |||||
Torso-level front row airbags, usually contained in the seats. Many also protect the head, but not as well as side curtain airbags. | |||||
Beeps signal distance to object in front of vehicle. Parking aid. | |||||
Beeps signal distance to object behind vehicle. Parking aid. | |||||
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 | |||||
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. | |||||
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. | |||||
Can be driven deflated for about 50 miles. Usually harm ride quality. Cars with these often have no spare tire. | |||||
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. | |||||
When a drive wheel slips, it is braked and/or engine power is reduced, restoring traction. | |||||
Cargo Management | |||||
Usually concealed behind a stowed armrest. Enables long items like skis to be carried without folding the rear seat. | |||||
Requires roof rails. Together constitute a roof rack. | |||||
Sack attached to rear seat pass-through. Keeps dirty skis from messing up the interior. | |||||
Climate Control | |||||
Automatically recirculates interior air when pollution is detected in outside air. | |||||
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. | |||||
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. | |||||
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. | |||||
Ducts under front seats direct heated air to the second row. | |||||
Drivetrain | |||||
Actively splits power between the left and right rear wheels, which generally yields sportier handling. | |||||
Engine / Motor | |||||
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. | |||||
Plugs into electrical outlet to warm up the engine. Facilitates starting in extreme cold. | |||||
Only listed if not standard on all trims. No value because no way to compare across models. | |||||
Permits a higher top speed before fuel cutoff kicks in. | |||||
Smart alternator recharges battery only while braking, to improve fuel economy. | |||||
Exterior | |||||
Only listed if not standard on all trims. No value because no way to compare across models. | |||||
Increasingly often these are not actually connected to the exhaust. | |||||
Chrome or aluminum mirrors. Only listed if optional or not standard on the base trim. | |||||
Flaps mounted behind two to four wheels, to protect the body from mud and rocks. | |||||
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. | |||||
Only listed if not standard on all trims. No value because no way to compare across models. | |||||
Infotainment | |||||
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. | |||||
Jack for an iPod or similar device. No value because of incomplete data. Will soon be standard on nearly every car. | |||||
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. | |||||
Audio system capable of playing DVDs on a front-row screen. Inoperative when the vehicle is moving. No value because of incomplete data. | |||||
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. | |||||
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. | |||||
Built-in drive with at least 10 GB of storage for MP3 and other audio files. | |||||
Audio system capable of playing discs with MP3 files. | |||||
Screen-based navigation system. | |||||
XM or Sirius. Includes a subscription for three to six months, after which monthly fees apply. | |||||
XM or Sirius with one-year subscription. | |||||
SD, CF, PCMCIA, or other digital media reader. | |||||
In BMWs includes baseplate in center console that provides a connection to an external antenna, but that requires an additional adapter. | |||||
Converts text messages to speech. | |||||
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. | |||||
Information about traffic plus weather, gas prices, sports news, and/or movie times. Monthly fee after first 3-12 months. | |||||
Information about traffic conditions. Monthly fee after first 3-12 months. | |||||
Often permits an iPod or phone to be integrated into the vehicle's entertainment system and controls. | |||||
Phone or other device operated via the vehicle's voice command system. Requires a compatible device--all aren't supported. | |||||
Sometimes also includes voice control over climate control system. | |||||
Provides Wi-Fi within the car. Includes internal modem, usually requires car-specific broadband service with monthly fee. | |||||
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. | |||||
We haven't given this feature a value because it's hard to tell which cars have it. | |||||
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. | |||||
Front row reading lights. | |||||
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. | |||||
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 | |||||
Real aluminum trim on instrument panel, door panels, and/or center console. Deleted by wood trim even if they appear together. | |||||
Won't be listed in conjunction with wood or aluminum trim even if they are available together. | |||||
Only listed if not standard on all trims. No value because no way to compare across models. | |||||
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. | |||||
Manually adjustable cushion length; provides better support for long legs. | |||||
Manually adjustable cushion length; provides better support for long legs. | |||||
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 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 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. | |||||
Stainless steel trim on instrument panel, door panels, and/or center console. Deleted by wood trim even if they appear together. | |||||
A.k.a vinyl, leatherette, MB-Tex, NuLuxe. | |||||
Seating surfaces are part leather, part synthetic suede. | |||||
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 trim on instrument panel, door panels, and/or center console. | |||||
Suspension, Wheels, and Tires | |||||
The steering ratio is automatically varied based on vehicle speed and other factors. | |||||
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. | |||||
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 | |||||
Electronically controls engine and transmission for perfect launch. | |||||
Paddles or buttons that can be used to manually shift the transmission. Only listed when optional or not always included with an automatic transmission. |
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