Caterham Unknown vs Caterham 7: MOT reliability compared
Updated 05 September 2026.
11.1%
Caterham Unknown MOT failure rate, 1.4 pts lower than Caterham 7
Caterham Unknown is the more reliable MOT performer: 11.1% of Caterham Unknown MOTs fail versus 12.5% for Caterham 7, a 1.4 point gap.
| Metric | Caterham Unknown | Caterham 7 |
|---|---|---|
| MOT failure rate | 11.1% | 12.5% |
| Tests analysed | 7,254 | 6,857 |
| Most common failure | Lamps & electrical (32.6%) | Lamps & electrical (34.4%) |
Questions and answers
Which is more reliable, Caterham Unknown or Caterham 7?
Caterham Unknown is the more reliable MOT performer: 11.1% of Caterham Unknown MOTs fail versus 12.5% for Caterham 7, a 1.4 point gap.
What is the MOT failure rate of the Caterham Unknown?
11.1% of Caterham Unknown MOT tests result in a failure, from 7,254 tests.
What is the MOT failure rate of the Caterham 7?
12.5% of Caterham 7 MOT tests result in a failure, from 6,857 tests.