Fiat 500 vs Toyota Aygo
On MOT-testable defects, the Toyota Aygo (fail rate 15.4%) performed better than the Fiat 500 (21.0%) across comparable years. The biggest divergence was suspension, where the 500 recorded failures more often.
21.0%
500 fail rate
15.4%
Aygo fail rate
5.52pp
Difference
Side by side
| Metric | Fiat 500 | Toyota Aygo |
|---|---|---|
| MOT tests analysed | 1,868,841 | 1,413,143 |
| Pass rate | 79.0% | 84.6% |
| Fail rate | 21.0% | 15.4% |
Where they differ
| Category | 500 | Aygo |
|---|---|---|
| Suspension | 11.1% | 4.0% |
| Brakes | 5.6% | 6.4% |
| Tyres | 5.2% | 4.6% |
| Visibility | 4.3% | 3.7% |
| Lighting & signalling | 8.1% | 8.3% |
Methodology & source. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.