Porsche Cayenne vs Porsche 924: MOT reliability compared
Updated 05 September 2026.
15.4%
Porsche Cayenne MOT failure rate, 15.0 pts lower than Porsche 924
Porsche Cayenne is the more reliable MOT performer: 15.4% of Porsche Cayenne MOTs fail versus 30.4% for Porsche 924, a 15.0 point gap.
| Metric | Porsche Cayenne | Porsche 924 |
|---|---|---|
| MOT failure rate | 15.4% | 30.4% |
| Tests analysed | 406,237 | 35,782 |
| Most common failure | Tyres (29.2%) | Brakes (45.8%) |
Questions and answers
Which is more reliable, Porsche Cayenne or Porsche 924?
Porsche Cayenne is the more reliable MOT performer: 15.4% of Porsche Cayenne MOTs fail versus 30.4% for Porsche 924, a 15.0 point gap.
What is the MOT failure rate of the Porsche Cayenne?
15.4% of Porsche Cayenne MOT tests result in a failure, from 406,237 tests.
What is the MOT failure rate of the Porsche 924?
30.4% of Porsche 924 MOT tests result in a failure, from 35,782 tests.