Opel Manta vs Opel Vectra: MOT reliability compared
Updated 05 September 2026.
23.9%
Opel Manta MOT failure rate, 9.0 pts lower than Opel Vectra
Opel Manta is the more reliable MOT performer: 23.9% of Opel Manta MOTs fail versus 32.9% for Opel Vectra, a 9.0 point gap.
| Metric | Opel Manta | Opel Vectra |
|---|---|---|
| MOT failure rate | 23.9% | 32.9% |
| Tests analysed | 10,396 | 5,836 |
| Most common failure | Lamps & electrical (46.0%) | Lamps & electrical (43.0%) |
Questions and answers
Which is more reliable, Opel Manta or Opel Vectra?
Opel Manta is the more reliable MOT performer: 23.9% of Opel Manta MOTs fail versus 32.9% for Opel Vectra, a 9.0 point gap.
What is the MOT failure rate of the Opel Manta?
23.9% of Opel Manta MOT tests result in a failure, from 10,396 tests.
What is the MOT failure rate of the Opel Vectra?
32.9% of Opel Vectra MOT tests result in a failure, from 5,836 tests.