Alfa Romeo 156 vs Alfa Romeo Giulietta: MOT reliability compared
Updated 05 September 2026.
21.7%
Alfa Romeo Giulietta MOT failure rate, 12.2 pts lower than Alfa Romeo 156
Alfa Romeo Giulietta is the more reliable MOT performer: 21.7% of Alfa Romeo Giulietta MOTs fail versus 33.9% for Alfa Romeo 156, a 12.2 point gap.
| Metric | Alfa Romeo 156 | Alfa Romeo Giulietta |
|---|---|---|
| MOT failure rate | 33.9% | 21.7% |
| Tests analysed | 487,745 | 359,551 |
| Most common failure | Lamps & electrical (44.9%) | Tyres (28.9%) |
Questions and answers
Which is more reliable, Alfa Romeo 156 or Alfa Romeo Giulietta?
Alfa Romeo Giulietta is the more reliable MOT performer: 21.7% of Alfa Romeo Giulietta MOTs fail versus 33.9% for Alfa Romeo 156, a 12.2 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 Giulietta?
21.7% of Alfa Romeo Giulietta MOT tests result in a failure, from 359,551 tests.