Certified Benz & Beemer Compares 2017 Chevrolet CORVETTE VS 2017 Porsche 718 Near Scottsdale, AZ

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2017 Chevrolet CORVETTE

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2017 Porsche 718

Safety Comparison

Both the Corvette and the 718 Cayman have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights and rearview cameras.

Warranty Comparison

Chevrolet’s powertrain warranty covers the Corvette 1 year and 10,000 miles longer than Porsche covers the 718 Cayman. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 5 years or 60,000 miles. Coverage on the 718 Cayman ends after only 4 years or 50,000 miles.

Chevrolet pays for scheduled maintenance on the Corvette for 2 years and 24,000 miles. Chevrolet will pay for oil changes, lubrication and any other required maintenance (up to 2 oil changes). Porsche doesn’t pay scheduled maintenance for the 718 Cayman.

There are over 16 times as many Chevrolet dealers as there are Porsche dealers, which makes it much easier should you ever need service under the Corvette’s warranty.

Engine Comparison

The Corvette has more powerful engines than the 718 Cayman:




Corvette 6.2 V8

455 HP

460 lbs.-ft.

Corvette 6.2 V8

460 HP

465 lbs.-ft.

Corvette Z06 6.2 supercharged V8

650 HP

650 lbs.-ft.

718 Cayman 2.0 turbo 4 cyl.

300 HP

280 lbs.-ft.

718 Cayman S 2.5 turbo 4 cyl.

350 HP

309 lbs.-ft.

As tested in Car and Driver the Chevrolet Corvette V8 is faster than the Porsche 718 Cayman 2.0 turbo 4 cyl. (manual transmissions tested):



718 Cayman

Zero to 60 MPH

3.9 sec

4.3 sec

Quarter Mile

12.2 sec

12.7 sec

As tested in Car and Driver the Corvette Z06 6.2 supercharged V8 is faster than the 718 Cayman S 2.5 turbo 4 cyl. (automatics tested):



718 Cayman

Zero to 60 MPH

3 sec

3.6 sec

Quarter Mile

11.1 sec

12 sec

Fuel Economy and Range Comparison

An engine control system that can shut down half of the engine’s cylinders helps improve the Corvette’s fuel efficiency. The 718 Cayman doesn’t offer a system that can shut down part of the engine.

To lower fuel costs and make buying fuel easier, the Chevrolet Corvette uses regular unleaded gasoline (premium recommended for maximum performance). The 718 Cayman requires premium, which can cost 20 to 55 cents more per gallon.

The Corvette has 4.2 gallons more fuel capacity than the 718 Cayman’s standard fuel tank (18.5 vs. 14.3 gallons), for longer range between fill-ups. The Corvette has 1.6 gallons more fuel capacity than the 718 Cayman’s optional fuel tank (18.5 vs. 16.9 gallons).

The Corvette has a standard cap-less fueling system. The fuel filler is automatically opened when the fuel nozzle is inserted and automatically closed when it’s removed. This eliminates the need to unscrew and replace the cap and it reduces fuel evaporation, which causes pollution. The 718 Cayman doesn’t offer a cap-less fueling system.

Brakes and Stopping Comparison

For better stopping power the Corvette Z07’s brake rotors are larger than those on the 718 Cayman:


Corvette Z07

718 Cayman

718 Cayman

Front Rotors

15.5 inches

13 inches

13.8 inches

Rear Rotors

15.3 inches

11.8 inches

13.8 inches

The Corvette stops much shorter than the 718 Cayman:



718 Cayman


70 to 0 MPH

128 feet

143 feet

Car and Driver

Tires and Wheels Comparison

For better traction, the Corvette has larger standard tires than the 718 Cayman (F:245/40R18 & R:285/35R19 vs. F:235/45R18 & R:265/45R18). The Corvette Z06/Grand Sport’s tires are larger than the largest tires available on the 718 Cayman (F:285/30R19 & R:335/25R20 vs. F:235/45R18 & R:265/45R18).

The Corvette’s standard 245/40R18 front and 285/35R19 rear tires provide better handling because they have a lower 40 series front and 35 series rear profile (height to width ratio) that provides a stiffer sidewall than the 718 Cayman’s standard 45 series tires. The Corvette Z06/Grand Sport’s 285/30R19 front and 335/25R20 rear tires have a lower 30 series front and 25 series rear profile than the 718 Cayman’s optional 35 series tires.

For better ride, handling and brake cooling the Corvette has standard 19-inch rear wheels. Smaller 18-inch wheels are standard on the 718 Cayman.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the Corvette can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The 718 Cayman doesn’t offer run-flat tires.

Suspension and Handling Comparison

For a smoother ride and more stable handling, the Corvette’s wheelbase is 9.3 inches longer than on the 718 Cayman (106.7 inches vs. 97.4 inches).

For better handling and stability, the average track (width between the wheels) on the Corvette is 3.6 inches wider in the front and 1.6 inches wider in the rear than the average track on the 718 Cayman.

The Corvette Z06 Coupe handles at 1.19 G’s, while the 718 Cayman S pulls only 1.02 G’s of cornering force in a Car and Driver skidpad test.

Chassis Comparison

The design of the Chevrolet Corvette amounts to more than styling. The Corvette has an aerodynamic coefficient of drag of .29 Cd. That is lower than the 718 Cayman (.31 to .32). A more efficient exterior helps the Corvette go faster and keeps the interior quieter. It also helps the Corvette get better fuel mileage.

Passenger Space Comparison

The Corvette has 4 cubic feet more passenger volume than the 718 Cayman (52 vs. 48).

Cargo Capacity Comparison

With its convertible body style, valet key and remote trunk release lockout, the Corvette offers cargo security. The 718 Cayman’s non-lockable remote release defeats cargo security.

Ergonomics Comparison

The Corvette Auto has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The 718 Cayman doesn’t offer a remote starting system.

The Corvette offers an optional heads-up display that projects speed and other key instrumentation readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The 718 Cayman doesn’t offer a heads-up display.

To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the Corvette has standard extendable sun visors. The 718 Cayman doesn’t offer extendable visors.

The Corvette has a standard dual zone air conditioning allows the driver and front passenger to choose two completely different temperatures so people with different temperature preferences won’t have to compromise. This makes both the driver and front passenger as comfortable as possible. Dual zone air conditioning costs extra on the 718 Cayman.

Recommendations Comparison

Both the Corvette Coupe and Convertible are ranked first in their classes and received the 2015 “Total Quality Award.” The 718 Cayman is not ranked.

The Corvette was selected by Automobile Magazine as their 2014 Car of the Year. The 718 Cayman has never been chosen.

A group of representative automotive journalists from North America selected the Corvette as the 2014 North American Car of the Year. The 718 Cayman has never been chosen.

The Chevrolet Corvette outsold the Porsche Cayman by over 8 to one during the 2016 model year.

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