Proton Gen-2 vs Proton Jumbuck: MOT reliability compared
Updated 05 September 2026.
29.5%
Proton Gen-2 MOT failure rate, 0.5 pts lower than Proton Jumbuck
Proton Gen-2 is the more reliable MOT performer: 29.5% of Proton Gen-2 MOTs fail versus 30.0% for Proton Jumbuck, a 0.5 point gap.
| Metric | Proton Gen-2 | Proton Jumbuck |
|---|---|---|
| MOT failure rate | 29.5% | 30.0% |
| Tests analysed | 60,404 | 30,444 |
| Most common failure | Brakes (36.4%) | Lamps & electrical (29.6%) |
Questions and answers
Which is more reliable, Proton Gen-2 or Proton Jumbuck?
Proton Gen-2 is the more reliable MOT performer: 29.5% of Proton Gen-2 MOTs fail versus 30.0% for Proton Jumbuck, a 0.5 point gap.
What is the MOT failure rate of the Proton Gen-2?
29.5% of Proton Gen-2 MOT tests result in a failure, from 60,404 tests.
What is the MOT failure rate of the Proton Jumbuck?
30.0% of Proton Jumbuck MOT tests result in a failure, from 30,444 tests.