Morgan 4/4 vs Morgan Roadster: MOT reliability compared
Updated 05 September 2026.
12.6%
Morgan Roadster MOT failure rate, 2.8 pts lower than Morgan 4/4
Morgan Roadster is the more reliable MOT performer: 12.6% of Morgan Roadster MOTs fail versus 15.4% for Morgan 4/4, a 2.8 point gap.
| Metric | Morgan 4/4 | Morgan Roadster |
|---|---|---|
| MOT failure rate | 15.4% | 12.6% |
| Tests analysed | 55,581 | 9,692 |
| Most common failure | Brakes (31.7%) | Lamps & electrical (23.8%) |
Questions and answers
Which is more reliable, Morgan 4/4 or Morgan Roadster?
Morgan Roadster is the more reliable MOT performer: 12.6% of Morgan Roadster MOTs fail versus 15.4% for Morgan 4/4, a 2.8 point gap.
What is the MOT failure rate of the Morgan 4/4?
15.4% of Morgan 4/4 MOT tests result in a failure, from 55,581 tests.
What is the MOT failure rate of the Morgan Roadster?
12.6% of Morgan Roadster MOT tests result in a failure, from 9,692 tests.