Certified Benz & Beemer Compares 2016 Chevrolet CORVETTE VS 2015 Mercedes SLK-Class Near Phoenix, AZ

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2016 Chevrolet CORVETTE

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2015 Mercedes SLK-Class

Safety Comparison

Both the Corvette and the SLK-Class 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 and daytime running lights.

Warranty Comparison

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

The Corvette’s corrosion warranty is 2 years and 50,000 miles longer than the SLK-Class’ (6/100,000 vs. 4/50,000).

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. Mercedes doesn’t pay scheduled maintenance for the SLK-Class.

There are almost 14 times as many Chevrolet dealers as there are Mercedes dealers, which makes it much easier should you ever need service under the Corvette’s warranty.

Reliability Comparison

J.D. Power and Associates’ 2015 Initial Quality Study of new car owners surveyed provide the statistics that show that Chevrolet vehicles are better in initial quality than Mercedes vehicles. J.D. Power ranks Chevrolet 7th in initial quality, above the industry average. With 10 more problems per 100 vehicles, Mercedes is ranked 14th.

Engine Comparison

The Corvette has more powerful engines than the SLK-Class:



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.

SLK250 1.8 turbo 4 cyl.

201 HP

229 lbs.-ft.

SLK350 3.5 DOHC V6

302 HP

273 lbs.-ft.

SLK55 5.5 DOHC V8

415 HP

398 lbs.-ft.

Fuel Economy and Range Comparison

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

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 SLK-Class 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 SLK-Class:

Corvette Z07



Front Rotors

15.5 inches

12.7 inches

14.2 inches

Rear Rotors

15.3 inches

11.8 inches

13 inches

The Corvette’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs standard on the SLK250 are solid, not vented.

The Corvette Z06 offers optional heat-treated ceramic brake rotors, which last ten to twenty times as long as conventional cast iron rotors, don’t rust, don’t fade during repeated high speed braking, and their lighter weight contribute to better braking, handling and acceleration. The SLK-Class doesn’t offer ceramic brake rotors.

The Corvette stops much shorter than the SLK-Class:



60 to 0 MPH

91 feet

109 feet

Motor Trend

Tires and Wheels Comparison

For better traction, the Corvette has larger standard tires than the SLK-Class (F:245/40R18 & R:285/35R19 vs. F:225/45R17 & R:245/40R17). The Corvette Z06’s tires are larger than the largest tires available on the SLK-Class (F:285/30R19 & R:335/25R20 vs. F:235/40R18 & R:255/35R18).

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 SLK250’s standard 45 series front and 40 series rear tires. The Corvette Z06’s 285/30R19 front and 335/25R20 rear tires have a lower 30 series front and 25 series rear profile than the SLK-Class’ optional 40 series front and 35 series rear tires.

For better ride, handling and brake cooling the Corvette has standard 18-inch front and 19-inch rear wheels. Smaller 17-inch wheels are standard on the SLK250. The Corvette’s optional 19-inch front and 20-inch rear wheels are larger than the 18-inch wheels optional on the SLK-Class.

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 SLK-Class doesn’t offer run-flat tires.

Suspension and Handling Comparison

For a smoother ride and more stable handling, the Corvette’s wheelbase is 11 inches longer than on the SLK-Class (106.7 inches vs. 95.7 inches).

For better handling and stability, the average track (width between the wheels) on the Corvette is 2 inches wider in the front than the average track on the SLK-Class.

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 SLK-Class (.3 to .34). 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 .5 inches more front legroom and 3 inches more front shoulder room than the SLK-Class.

Cargo Capacity Comparison

The Corvette Convertible has a much larger trunk with its top down than the SLK-Class with its top down (10 vs. 6.4 cubic feet).

Ergonomics Comparison

The Corvette Auto offers a 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 SLK-Class doesn’t offer a remote starting system.

The Corvette’s instruments include an oil pressure gauge and a temperature gauge – which could save your engine! Often ‘idiot lights’ don’t warn you until damage has been done. The SLK-Class does not have an oil pressure gauge.

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 SLK-Class doesn’t offer a heads-up display.

Optional air conditioned seats in the Corvette keep the driver and front passenger comfortable and take the sting out of hot seats in Summer. The SLK-Class doesn’t offer air conditioned seats.

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 SLK-Class.

Economic Advantages Comparison

The Corvette will cost the buyer less in the long run because of its superior resale value. Kiplinger’s estimates that the Corvette will retain a greater percentage of its original price after three and five years than the SLK-Class.



Five Year

49% to 50%

33% to 35%

Three Year

63% to 65%

49% to 53%

Recommendations Comparison

The Chevrolet Corvette has won recognition from these important consumer publications:



Consumer Reports® Recommends



Kiplinger’s Award



J.D. Power and Associates rated the Corvette first among midsize premium sporty cars in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner’s expectations. The SLK-Class isn’t in the top three in its category.

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

The Corvette was chosen as one of Car and Driver’s “Top Ten” for 12 of the last 18 years. The SLK-Class has never been a Car and Driver “Top Ten” pick.

The Corvette was chosen as one of Automobile Magazine’s “All Stars” for 5 of the last 11 years. The SLK-Class has never been an “All Star.”

The Corvette was selected by Automobile Magazine as their 2014 Car of the Year. The SLK-Class 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 SLK-Class has never been chosen.

The Chevrolet Corvette outsold the Mercedes SLK-Class by over eight to one during the 2015 model year.

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