Alfa Romeo 156 vs Alfa Romeo Spider: MOT reliability compared
Updated 05 September 2026.
28.1%
Alfa Romeo Spider MOT failure rate, 5.8 pts lower than Alfa Romeo 156
Alfa Romeo Spider is the more reliable MOT performer: 28.1% of Alfa Romeo Spider MOTs fail versus 33.9% for Alfa Romeo 156, a 5.8 point gap.
| Metric | Alfa Romeo 156 | Alfa Romeo Spider |
|---|---|---|
| MOT failure rate | 33.9% | 28.1% |
| Tests analysed | 487,745 | 126,103 |
| Most common failure | Lamps & electrical (44.9%) | Brakes (41.0%) |
Questions and answers
Which is more reliable, Alfa Romeo 156 or Alfa Romeo Spider?
Alfa Romeo Spider is the more reliable MOT performer: 28.1% of Alfa Romeo Spider MOTs fail versus 33.9% for Alfa Romeo 156, a 5.8 point gap.
What is the MOT failure rate of the Alfa Romeo 156?
33.9% of Alfa Romeo 156 MOT tests result in a failure, from 487,745 tests.
What is the MOT failure rate of the Alfa Romeo Spider?
28.1% of Alfa Romeo Spider MOT tests result in a failure, from 126,103 tests.