Model Year | 2007 | 2007 | 2015 | 2015 | 2015 |
Model | A8 / S8 | A8 / S8 | XJ | XJ | XJ |
Trim | A8 L | A8 L W12 | XJL Portfolio | XJL Supercharged | XJR |
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. | |||||
Pulls door tight after latch is engaged. Door can be shut with very little effort. | |||||
Often must be ordered with power rear side windows, if these are available. | |||||
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. | |||||
Unlock and lock the car using buttons on the keyfob. | |||||
Start the car using a button on the keyfob. Interior can be a comfortable temperature as soon as you get in. | |||||
Operate the power windows, sunroof, and/or convertible roof 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. | |||||
Greatly reduce the amount of sunlight entering the rear side windows. Retract into rear doors. Includes value of manual shades. | |||||
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. | |||||
Mirror-mounted lights indicate when another vehicle is in a blind spot. | |||||
When a panic stop is sensed, fully applies the brakes. | |||||
Alerts driver when approaching the preceding car too quickly. | |||||
Mandatory, in all cars. | |||||
Beeps signal distance to object in front of vehicle. Parking aid. | |||||
Beeps signal distance to object behind vehicle. Parking aid. | |||||
Only listed if not standard on all trims. No value because no way to compare across models. | |||||
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. | |||||
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. | |||||
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. | |||||
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. | |||||
Layer within windshield creates heat, quickly melting ice on the windshield. | |||||
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. | |||||
Provides heat for an extended period of time after the engine has been cut off. | |||||
Makes rain bead up and roll off the windows. | |||||
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. | |||||
Permits a higher top speed before fuel cutoff kicks in. | |||||
Changes sound of exhaust and/or appearance of the tips. In some cases might slightly improve performance. | |||||
Exterior | |||||
Side skirts and possibly a front air dam and rear apron. | |||||
Moldings on the bodysides, to protect against door dings in parking lots. | |||||
Increasingly often these are not actually connected to the exhaust. | |||||
Spoiler mounted beneath the nose of the car, to increase downforce. | |||||
Reduces interior noise, prevents side windows from shattering. | |||||
Front glass panel retracts over a fixed glass roof panel. Entire unit covers nearly the entire roof. | |||||
Can be small lip spoiler or a larger raised spoiler. | |||||
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. | |||||
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. | |||||
Gas Guzzler Tax | |||||
Infotainment | |||||
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. | |||||
A microphone above each seating position and digital audio processing technology reinforce the occupant's voice via the vehicle's audio system. | |||||
Audio system capable of playing DVDs on a front-row screen. Inoperative when the vehicle is moving. No value because of incomplete data. | |||||
A DVD player and two front headrest-mounted screens. | |||||
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. | |||||
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. | |||||
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. | |||||
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. | |||||
Only listed if not standard on all trims. No value because no way to compare across models. | |||||
The information displayed by the instruments can be customized. Color display(s) of at least 20 square inches. | |||||
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. | |||||
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. | |||||
Only listed if not standard on all trims. No value because no way to compare across models. | |||||
Tray tables that fold down from the front seatbacks, like on an airplane. | |||||
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. | |||||
Power lumbar, rollers, 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 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-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. | |||||
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 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. | |||||
Same value as regular alloy wheels because no way to compare across models. | |||||
Varies throttle, steering, ABS, and/or stability control calibration. | |||||
Alloy wheels highly polished to yield an almost chrome-like finish. In the past valued more highly than regular alloy wheels. But the term is used so broadly lately, often meaning that only some of the wheel face is machined, that they have the same defau | |||||
Air springs maintain the rear ride height. | |||||
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. | |||||
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. |
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