2020 Audi TT vs. 2020 Mercedes C-Class Coupe

Detailed Review, Specifications & Comparison

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Safety

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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 Coupe 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 Coupe.

Both the TT and the C-Class Coupe 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

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

Reliability

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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 Coupe.

J.D. Power and Associates’ 2019 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 8th in reliability, above the industry average. With 10 more problems per 100 vehicles, Mercedes is ranked 13th.

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

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The TTS’ standard 2.0 turbo 4 cyl. produces 33 more horsepower (288 vs. 255) and 7 lbs.-ft. more torque (280 vs. 273) than the C-Class Coupe’s 2.0 turbo 4 cyl. The TT RS Coupe’s standard 2.5 turbo 5 cyl. produces 145 more horsepower (400 vs. 255) and 81 lbs.-ft. more torque (354 vs. 273) than the C-Class Coupe’s 2.0 turbo 4 cyl.

Fuel Economy and Range

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On the EPA test cycle the TT 45 TFSI Auto gets better fuel mileage than the C 300 4MATIC (23 city/31 hwy vs. 21 city/30 hwy).

Environmental Friendliness

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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 Coupe is only certified to “Ultra Low Emissions Vehicle” (ULEV) standards.

Transmission

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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 Coupe 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 Coupe doesn’t offer launch control.

Brakes and Stopping

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

TT RS Coupe

C-Class Coupe

Front Rotors

14.6 inches

13 inches

Rear Rotors

12.2 inches

11.8 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 Coupe doesn’t offer ceramic brake rotors.

The TT stops shorter than the C-Class Coupe:

TT

C-Class Coupe

60 to 0 MPH

100 feet

109 feet

Motor Trend

Tires and Wheels

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For better traction, the TT has larger standard tires than the C-Class Coupe (245/40R18 vs. 225/45R18). The TTS/RS’ optional tires are larger than the largest tires available on the C-Class Coupe (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 Coupe’s standard 45 series front tires. The TTS/RS’ optional tires have a lower 30 series profile than the C-Class Coupe’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 Coupe’s largest wheels are only 19-inches.

Suspension and Handling

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The TT offers an available driver-adjustable suspension system. It allows the driver to choose between an extra-supple ride, reducing fatigue on long trips, or a sport setting, which allows maximum control for tricky roads. The C-Class Coupe’s suspension doesn’t offer adjustable shock absorbers.

The TT RS Coupe handles at 1.05 G’s, while the C 300 pulls only .91 G’s of cornering force in a Car and Driver skidpad test.

The TT RS Coupe executes Motor Trend’s “Figure Eight” maneuver 2.2 seconds quicker than the C 300 4MATIC (23.7 seconds @ .85 average G’s vs. 25.9 seconds @ .71 average G’s).

For better maneuverability, the TT’s turning circle is 2 feet tighter than the C 300’s (34.8 feet vs. 36.8 feet). The TT RS Coupe’s turning circle is .8 feet tighter than the C 300’s (36 feet vs. 36.8 feet).

Chassis

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The Audi TT may be more efficient, handle and accelerate better because it weighs about 300 to 350 pounds less than the Mercedes C-Class Coupe.

The TT is 1 foot, 7.5 inches shorter than the C-Class Coupe, making the TT easier to handle, maneuver and park in tight spaces.

Cargo Capacity

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The TT Coupe has a much larger trunk than the C-Class Coupe (12 vs. 10.5 cubic feet).

Ergonomics

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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 Coupe 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 Coupe.

Economic Advantages

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Insurance will cost less for the TT owner. The Complete Car Cost Guide estimates that insurance for the TT will cost $160 to $2385 less than the C-Class Coupe over a five-year period.

The TT will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the TT will retain 45.66% to 46.08% of its original price after five years, while the C-Class Coupe only retains 34.57% to 34.67%.

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Audi TT will be $1916 to $3500 less than for the Mercedes C-Class Coupe.

Recommendations

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/12/14

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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