2019 Audi TT vs. 2019 BMW Z4

Detailed Review, Specifications & Comparison

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Safety

The TT has standard head airbag curtains for front and rear seats which act as a forgiving barrier between the driver and outboard passenger's upper bodies and the window and pillars. Combined with high-strength steel door beams and lower side airbags this system increases head protection in broadside collisions. The Z4 doesn't offer side airbag protection for the head.

The TT has all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The Z4 doesn’t offer all-wheel drive.

Both the TT and the Z4 have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, post-collision automatic braking systems, daytime running lights, rearview cameras and available blind spot warning systems.

Reliability

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Audi vehicles are more reliable than BMW vehicles. Consumer Reports ranks Audi 1 place higher in reliability than BMW.

Engine

The TT RS Coupe’s 2.5 turbo 5 cyl. produces 18 more horsepower (400 vs. 382) than the Z4 M40i’s optional 3.0 turbo 6 cyl.

Transmission and Drivetrain

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 Z4 doesn’t offer an SMG or a conventional manual transmission.

All wheel drive, available in the TT, provides the best traction for acceleration in wet, dry, and icy conditions. In corners, all wheel drive allows both outside wheels to provide power, balancing the car. This allows for better handling. The BMW Z4 is not available with all wheel drive.

Brakes and Stopping

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 Z4 doesn’t offer ceramic brake rotors.

Tires and Wheels

For better traction, the TT has larger standard tires than the Z4 (245/40R18 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 Z4’s standard 45 series front tires. The TTS/RS’ optional tires have a lower 30 series profile than the Z4’s optional 35 series tires.

For better ride, handling and brake cooling the TTS/RS offers optional 20-inch wheels. The Z4’s largest wheels are only 19-inches.

Suspension and Handling

For a smoother ride and more stable handling, the TT’s wheelbase is 1.4 inches longer than on the Z4 (98.6 inches vs. 97.2 inches).

For better maneuverability, the TT’s turning circle is 1.2 feet tighter than the Z4’s (34.8 feet vs. 36 feet).

Chassis

The TT is 5.7 inches shorter than the Z4, making the TT easier to handle, maneuver and park in tight spaces.

Passenger Space

The TT Coupe has standard seating for 4 passengers; the Z4 can only carry 2.

Servicing Ease

J.D. Power and Associates surveys of service recipients show that Audi service is better than BMW. J.D. Power ranks Audi third in service department satisfaction. With a 14% lower rating, BMW is ranked 8th.

Ergonomics

The TT’s front power windows open or close fully with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside the car. The Z4’s passenger windows don’t open or close automatically.

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 Z4 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 Z4.

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 Z4.

Model Availability

The Audi TT comes in coupe and convertible bodystyles; the BMW Z4 isn’t available as a coupe.

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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