| Model Year | 2008 | 2008 | 2008- | 2008- | 2008- | 2008- | 2008- |
| Model | Cayman | Cayman | Impala | Impala | Impala | Impala | Impala |
| Trim | Base | S | LS | LT 3.5 | LT 3.9 | LTZ | SS |
| Engines | |||||||
| Transmissions | |||||||
| Drivetrains | |||||||
| Tires | |||||||
| Audio Systems | |||||||
| Accessories | |||||||
| Often must be ordered with power rear side windows, if these are available. | |||||||
| 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. | |||||||
| Homelink. | |||||||
| Brakes, Airbags, and Other Safety | |||||||
| Rear disc brakes. | |||||||
| 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. | |||||||
| Ceramic composite brake rotors. | |||||||
| 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 behind vehicle. Parking aid. | |||||||
| 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 | |||||||
| 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. | |||||||
| 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. | |||||||
| Ducts under front seats direct heated air to the second row. | |||||||
| Time between wipes can be precisely adjusted. | |||||||
| Makes rain bead up and roll off the windows. | |||||||
| Engine / Motor | |||||||
| 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. | |||||||
| Plugs into electrical outlet to warm up the engine. Facilitates starting in extreme cold. | |||||||
| The engine is located behind the driver but ahead of the rear axle. | |||||||
| Changes sound of exhaust and/or appearance of the tips. In some cases might slightly improve performance. | |||||||
| Exterior | |||||||
| Moldings on the bodysides, to protect against door dings in parking lots. | |||||||
| Increasingly often these are not actually connected to the exhaust. | |||||||
| Can be small lip spoiler or a larger raised spoiler. | |||||||
| Spoiler extends automatically at high speeds. Otherwise flush with body. Can be manually extended and retracted. | |||||||
| Only listed if not standard on all trims. No value because no way to compare across models. | |||||||
| Large spoiler stands well above the trunk or hatch. | |||||||
| Infotainment | |||||||
| Jack for an iPod or similar device. No value because of incomplete data. Will soon be standard on nearly every car. | |||||||
| Includes CD player. | |||||||
| 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 discs with MP3 files. | |||||||
| Screen-based navigation system. | |||||||
| Enables navigation even without roads. Requires and does not include the value of a navigation system. | |||||||
| XM or Sirius. Includes a subscription for three to six months, after which monthly fees apply. | |||||||
| 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. | |||||||
| In-vehicle security, communications, and diagnostics system plus turn-by-turn navigation (no map display). For 2011 and newer cars often includes a remote app. Monthly fee after the first 1-12 months. | |||||||
| Includes frequencies for weather channels. Only listed when pricing a single model because incomplete data for all model. | |||||||
| Instruments, Lights, and Mirrors | |||||||
| Driver-side exterior mirror automatically dims when hit by headlights of following vehicle. | |||||||
| 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. | |||||||
| Stopwatch, lap timer. Usually includes an analog clock. | |||||||
| We haven't given this feature a value because it's hard to tell which cars have it. | |||||||
| 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. | |||||||
| 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. | |||||||
| Manually adjustable lower back support. | |||||||
| 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 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 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. | |||||||
| Usually also includes synthetic suede on the pillars. | |||||||
| Synthetic suede steering wheel rim. | |||||||
| Only listed if not standard on all trims. No value because no way to compare across models. | |||||||
| No additional value over leather upholstery because no way to standardize across all models. | |||||||
| No additional value over wood trim because no way to standardize across all models. | |||||||
| 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. | |||||||
| Varies throttle, steering, ABS, and/or stability control calibration. | |||||||
| Outer surface of alloy wheels machines to yield a bright finish. Replace and include value of reqular alloy wheels. | |||||||
| Only listed if not standard on all trims. No value because no way to compare across models. | |||||||
| Transmission | |||||||
| Only listed if not standard on all trims. No value because no way to compare across models. | |||||||
What Our Members Are Saying about the Available Features of the 2008 Porsche Cayman
6-speed manual RWD
6-speed manual RWD
What Our Members Are Saying about the Available Features of the 2008- Chevrolet Impala
4-speed automatic FWD
4-speed automatic FWD