| Model Year | 2017 | 2017 | 2017- | 2017- | 2017- | 2017- |
| Model | MX-5 Miata | MX-5 Miata | Corvette | Corvette | Corvette | Corvette |
| Trim | RF Club | RF Grand Touring | Stingray | Stingray Z51 | Grand Sport | Z06 |
| Engines | ||||||
| Transmissions | ||||||
| Drivetrains | ||||||
| Tires | ||||||
| Audio Systems | ||||||
| Accessories | ||||||
| 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. | ||||||
| Start the car using a button on the keyfob. Interior can be a comfortable temperature as soon as you get in. | ||||||
| Homelink. | ||||||
| Removable or foldable barrier extends upward behind the front seatbacks, preventing cold air from entering the front seat area. | ||||||
| Brakes, Airbags, and Other Safety | ||||||
| Rear disc brakes. | ||||||
| Automatically contacts 911 through a linked cell phone in the event of a severe collision. | ||||||
| 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. | ||||||
| Ceramic composite brake rotors. | ||||||
| Warns of traffic coming from either direction when vehicle is in reverse, to prevent accidents when backing out of parking spaces. | ||||||
| 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. | ||||||
| Alerts driver when the vehicle seems to be wandering out of the lane. | ||||||
| Only listed if not standard on all trims. No value because no way to compare across models. | ||||||
| Continuously modulates throttle to maximize available traction. Driver simply floors accelerator. | ||||||
| Rearview camera connected to display screen on the instrument panel. Often requires navigation system. | ||||||
| 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. | ||||||
| When a drive wheel slips, it is braked and/or engine power is reduced, restoring traction. | ||||||
| Periodically uploads and emails a vehicle diagnostic check. | ||||||
| Wide angle camera allows the driver to see well to each side from the very front of the car when pulling out of parking spaces or side streets. | ||||||
| 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. | ||||||
| Time between wipes can be precisely adjusted. | ||||||
| Drivetrain | ||||||
| Actively splits power between the left and right rear wheels, which generally yields sportier handling. | ||||||
| No default value because incomplete coverage acroass all models in database. | ||||||
| When one rear wheel spins, the differential locks up, sending power to the wheel with better traction. | ||||||
| Unlike a conventional differential, a Torsen mechanically shifts torque to the wheel with the most traction. Unlike a conventional limited-slip differential, it doesn't have to lock to do this. | ||||||
| Engine / Motor | ||||||
| Prevents oil starvation in extremely hard cornering. | ||||||
| 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. | ||||||
| Exterior | ||||||
| Side skirts and possibly a front air dam and rear apron. | ||||||
| Side skirts and possibly a front air dam and rear apron. Not body color. | ||||||
| Increasingly often these are not actually connected to the exhaust. | ||||||
| Spans width of car, providing much of the effect of a convertible. | ||||||
| A stripe or two running diagonally above the wheel on one or both front fenders. | ||||||
| Single hood stripe | ||||||
| Only listed if a second, smaller spoiler is also standard or optional. No additional value because no way to compare across models. | ||||||
| Can manually adjust the spoiler for additional downforce. | ||||||
| No value since replaces painted brake calipers. | ||||||
| Spans width of car, providing much of the effect of a convertible. | ||||||
| Can be small lip spoiler or a larger raised spoiler. | ||||||
| Spans width of car, providing much of the effect of a convertible. | ||||||
| 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. | ||||||
| Extensions to the wheel opening, both decorative and protective. | ||||||
| Gas Guzzler Tax | ||||||
| Infotainment | ||||||
| Higher speed Internet connection. Monthly fee after trial period. | ||||||
| Requires compatible Android phone. | ||||||
| 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. | ||||||
| Requires compatible Apple iPhone. | ||||||
| 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 player located beyond easy reach of the driver. | ||||||
| High-definition radio, which broadcasts a digital signal. Free, no subscription fees. | ||||||
| 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. | ||||||
| Converts text messages to speech. | ||||||
| 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. | ||||||
| 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. | ||||||
| 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. | ||||||
| Interior rearview mirror automatically dims when hit by headlights of following vehicle. | ||||||
| Headlights automatically turn on and off. Includes value of automatic-off headlights. | ||||||
| Headlights automatically turn off. | ||||||
| Reports the amount of boost being provided by the supercharger or turbocharger. | ||||||
| We haven't given this feature a value because it's hard to tell which cars have it. | ||||||
| Projects various instrument readouts onto the windshield. Image actually appears to be floating over the nose of the car. Enables driver to keep eyes on the road. | ||||||
| Clears ice and fog from mirrors. | ||||||
| Includes value of non-illuminated vanity mirror. | ||||||
| Includes value of non-illuminated vanity mirror. | ||||||
| The information displayed by the instruments can be customized. Color display(s) of at least 20 square inches. | ||||||
| Only listed if not standard on all trims. No value because no way to compare across models. | ||||||
| Front row reading lights. | ||||||
| Records acceleration, braking, and cornering data. | ||||||
| Measures and displays lateral acceleration. Some also measure and display 0-60, quarter mile, etc. | ||||||
| Area around the vehicle is illuminated when the vehicle is remotely unlocked. | ||||||
| Includes value of manual remote mirrors. | ||||||
| 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. | ||||||
| Built in camera captures view forward while driving. | ||||||
| Provide a brighter, whiter light than halogen headlights. | ||||||
| Seats and Interior Trim | ||||||
| All-weather floormats. | ||||||
| Won't be listed in conjunction with wood or aluminum trim even if they are available together. | ||||||
| Usually red or yellow. | ||||||
| Only listed if not standard on all trims. No value because no way to compare across models. | ||||||
| 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 tilting seat cushion; can take the form of a second height adjustment. | ||||||
| Power-adjustable lower back support. | ||||||
| Power-adjustable lower back support. | ||||||
| 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. | ||||||
| Only listed if not standard on all trims. No value because no way to compare across models. | ||||||
| Suede-like trim on the door panels. | ||||||
| Usually also includes synthetic suede on the pillars. | ||||||
| Seating surfaces are part leather, part synthetic suede. | ||||||
| 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. | ||||||
| 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. | ||||||
| Same value as regular alloy wheels because no way to compare across models. | ||||||
| Alloy wheels plated with chrome. Some use a more durable, alternative process (PVD, Superchrome). Replace and include value of regular alloy wheels. | ||||||
| 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. | ||||||
| Improves body stiffness, for more precise handling. Value of zero because resulting body stiffness not comparable model to model. | ||||||
| Track tires provide more grip but have a very short tread life. | ||||||
| Only listed if not standard on all trims. No value because no way to compare across models. | ||||||
| Lug nuts that can only be removed using a special key. Prevents theft of wheels. | ||||||
| Transmission | ||||||
| Optional gearing with ratios that are closer together. Improves performance but reduces fuel economy. | ||||||
| Engine automatically matches revs when manual transmission is downshifted. | ||||||
| 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. | ||||||
| Only listed when pricing a single model because insufficient data for all cars. | ||||||
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