2019 Audi TT vs. 2019 Porsche 718 Boxster

Detailed Review, Specifications & Comparison

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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 718 Boxster 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.

The TT has all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The 718 Boxster doesn’t offer all-wheel drive.

Both the TT and the 718 Boxster have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front 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.


There are over 59 percent more Audi dealers than there are Porsche dealers, which makes it much easier should you ever need service under the TT’s warranty.


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 20 points higher than the 718 Boxster.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Audi vehicles are more reliable than Porsche vehicles. Consumer Reports ranks Audi 4 places higher in reliability than Porsche.


The TT RS Coupe’s 2.5 turbo 5 cyl. produces 35 more horsepower (400 vs. 365) and 37 lbs.-ft. more torque (354 vs. 317) than the 718 Boxster GTS’ optional 2.5 turbo 4 cyl.

As tested in Car and Driver the TT RS is faster than the 718 Boxster S (automatics tested):




Zero to 60 MPH

3.2 sec

3.7 sec

Quarter Mile

11.6 sec

11.9 sec

Fuel Economy and Range

On the EPA test cycle the TT gets better fuel mileage than the 718 Boxster:








45 TSFI 2.0 turbo 4 cyl.

23 city/31 hwy



TTS 2.0 turbo 4 cyl.

23 city/29 hwy



RS 2.5 turbo 5 cyl.

20 city/28 hwy

718 Boxster



2.0 turbo 4 cyl.

21 city/28 hwy



S 2.5 turbo 4 cyl.

20 city/26 hwy



GTS 2.5 turbo 4 cyl.

20 city/25 hwy



2.0 turbo 4 cyl.

22 city/29 hwy



S 2.5 turbo 4 cyl.

21 city/28 hwy



GTS 2.5 turbo 4 cyl.

20 city/26 hwy

Transmission and Drivetrain

The Audi TT comes standard with an automatic transmission, for driver comfort, especially in the city. Automatic costs extra on the 718 Boxster.

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 Porsche 718 Boxster is not available with all wheel drive.

Brakes and Stopping

For better stopping power the TT’s brake rotors are larger than those on the 718 Boxster:





Boxster opt.

Front Rotors

13.3 inches

14.6 inches

13 inches

13.8 inches

The TT stops shorter than the 718 Boxster:





70 to 0 MPH

140 feet

145 feet

Car and Driver

Tires and Wheels

For better traction, the TT has larger standard tires than the 718 Boxster (245/40R18 vs. 235/45R18). The TTS/RS’ optional tires are larger than the largest tires available on the 718 Boxster (255/30R20 vs. 245/35R20).

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 718 Boxster’s standard 45 series tires. The TTS/RS’ optional tires have a lower 30 series profile than the 718 Boxster’s optional 35 series front tires.

Suspension and Handling

For a smoother ride and more stable handling, the TT’s wheelbase is 1.2 inches longer than on the 718 Boxster (98.6 inches vs. 97.4 inches).

For better handling and stability, the average track (width between the wheels) on the TT is 2 inches wider in the front and .5 inches wider in the rear than the average track on the 718 Boxster.

For better maneuverability, the TT’s turning circle is 1.3 feet tighter than the 718 Boxster’s (34.8 feet vs. 36.1 feet). The TT RS Coupe’s turning circle is .1 feet tighter than the 718 Boxster’s (36 feet vs. 36.1 feet).


The TT is 7.4 inches shorter than the 718 Boxster, making the TT easier to handle, maneuver and park in tight spaces.

Passenger Space

The TT Coupe has standard seating for 4 passengers; the 718 Boxster can only carry 2.


If the windows are left open on the TT the driver can close them all at the outside door handle or from a distance using the remote. On a hot day the driver can also lower the windows the same way. The driver of the 718 Boxster can only operate the windows from inside the vehicle, with the ignition on.

The TT’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The 718 Boxster’s standard manually variable intermittent wipers have to be constantly adjusted.

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 718 Boxster doesn’t offer heated windshield washer nozzles.

Model Availability

The Audi TT comes in coupe and convertible bodystyles; the Porsche 718 Boxster isn’t available as a coupe.


Consumer Reports® recommends both the Audi TT and the Porsche 718 Boxster, based on reliability, safety and performance.

The Audi TT outsold the Porsche Boxster by 7 units during 2017.

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

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