Audi TT vs Porsche 911

Both are coupés & GTs. First-time MOT failure at age 7, and what each one is known to fail on.

The Porsche 911 is the more reliable of the two. It fails its first MOT at age 7 5.7% of the time, against 11.6% for the Audi TT.

Audi TT

11.6%

fail at age 7

Rank 17 of 239 · 49k miles at 7 · 71,119 tests

Porsche 911

5.7%

fail at age 7

Rank 3 of 239 · 24k miles at 7 · 22,079 tests

What each one fails on

Measured

The faults each records most at ages 6 to 9. Same figures as each full report.

A shock absorber damaged to the extent that it does not function or showing signs of severe leakageAdvisory3.6%

A suspension component excessively damaged or corrodedAdvisory2.6%

A shock absorber damaged to the extent that it does not function or showing signs of severe leakageFail1.1%

Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road usersAdvisory1.0%

A suspension pin, bush or joint excessively wornAdvisory0.7%

A brake hose ferrule excessively corrodedAdvisory0.7%

Brake pipe damaged or excessively corrodedAdvisory0.7%

Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road usersAdvisory0.6%

A suspension pin, bush or joint excessively wornAdvisory0.5%

A spring or spring component fractured or seriously weakenedAdvisory0.4%

Coolant leakAdvisory0.4%

A shock absorber damaged to the extent that it does not function or showing signs of severe leakageAdvisory0.3%