2019 Audi TT vs. 2019 Mercedes C-Class Cabriolet

Detailed Review, Specifications & Comparison

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Safety

The TT has a standard Secondary Collision Brake Assist, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The C-Class Cabriolet doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.

To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the TT. But it costs extra on the C-Class Cabriolet.

Both the TT and the C-Class Cabriolet have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras and available blind spot warning systems.

Warranty

The TT’s corrosion warranty is 7 years longer than the C-Class Cabriolet’s (12 vs. 5 years).

Reliability

A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without a vehicle while it’s being repaired. Consumer Reports rates the TT’s reliability 24 points higher than the C-Class Cabriolet.

J.D. Power and Associates’ 2018 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Audi vehicles are more reliable than Mercedes vehicles. J.D. Power ranks Audi 13th in reliability, above the industry average. With 6 more problems per 100 vehicles, Mercedes is ranked 15th.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Audi vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Audi 10 places higher in reliability than Mercedes.

Engine

The TT RS Coupe’s 2.5 turbo 5 cyl. produces 15 more horsepower (400 vs. 385) than the AMG C 43 Cabriolet’s optional 3.0 turbo V6.

Environmental Friendliness

The U.S. Environmental Protection Agency (EPA) certifies the Audi TT at emission levels ranging from “Ultra Low Emissions Vehicle” (ULEV) to “Super Ultra Low Emissions Vehicle” (SULEV). The Mercedes C-Class Cabriolet is only certified to “Ultra Low Emissions Vehicle” (ULEV) standards.

Transmission

The TT offers a standard sequential manual gearbox (SMG). With no clutch pedal to worry about and a fully automatic mode, an SMG is much more efficient than a conventional automatic but just as easy to drive. The C-Class Cabriolet doesn’t offer an SMG or a conventional manual transmission.

The TT RS’ launch control uses engine electronics to hold engine RPM’s precisely in order to provide the most stable and rapid acceleration possible, using all of the available traction. The C-Class Cabriolet doesn’t offer launch control.

Brakes and Stopping

For better stopping power the TT’s brake rotors are larger than those on the C-Class Cabriolet:

 

TTS

TT RS

C-Class

AMG C 43

Front Rotors

13.3 inches

14.6 inches

13 inches

14.2 inches

The TT RS 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 C-Class Cabriolet doesn’t offer ceramic brake rotors.

The TT stops much shorter than the C-Class Cabriolet:

 

TT

C-Class

 

70 to 0 MPH

140 feet

158 feet

Car and Driver

Tires and Wheels

For better traction, the TT has larger standard tires than the C-Class Cabriolet (245/40R18 vs. 225/45R18). The TTS/RS’ optional tires are larger than the largest tires available on the C-Class Cabriolet (255/30R20 vs. 225/45R18).

The TT 45 TSFI’s standard tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the C-Class Cabriolet’s standard 45 series front tires. The TTS/RS’ optional tires have a lower 30 series profile than the AMG C 43 Cabriolet’s optional 40 series front and 35 series rear tires.

For better ride, handling and brake cooling the TTS/RS offers optional 20-inch wheels. The C-Class Cabriolet’s largest wheels are only 19-inches.

Suspension and Handling

For better maneuverability, the TT’s turning circle is 2 feet tighter than the C 300 Cabriolet’s (34.8 feet vs. 36.8 feet). The TT RS Coupe’s turning circle is 3.7 feet tighter than the AMG C 43 Cabriolet’s (36 feet vs. 39.7 feet).

Chassis

The Audi TT may be more efficient, handle and accelerate better because it weighs about 650 to 850 pounds less than the Mercedes C-Class Cabriolet.

The TT is 1 foot, 7.5 inches shorter than the AMG C 43 Cabriolet, making the TT easier to handle, maneuver and park in tight spaces.

Cargo Capacity

The TT Roadster has a larger trunk than the C-Class Cabriolet with its top down (7.5 vs. 7 cubic feet).

Servicing Ease

J.D. Power and Associates surveys of service recipients show that Audi service is better than Mercedes. J.D. Power ranks Audi third in service department satisfaction. With a 3% lower rating, Mercedes is ranked 6th.

Ergonomics

Heated windshield washer nozzles are standard on the TT to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The C-Class Cabriolet doesn’t offer heated windshield washer nozzles.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Audi TT has a standard wireless phone charging system (Qi) in the center console. Wireless charging costs extra on the C-Class Cabriolet.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Audi TT has a standard wireless phone charging system (Qi) in the center console. Wireless charging costs extra on the C-Class Cabriolet.

Recommendations

Consumer Reports® recommends the Audi TT, based on reliability, safety and performance.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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