Ford Fiesta vs MINI Cooper
On MOT-testable defects the MINI Cooper comes out ahead: 10.5% of its tests record a failure against 21.1% for the Ford Fiesta, a 10.7-point gap. The biggest single difference is lighting & signalling, where the Fiesta records failures noticeably more often.
21.1%
Fiesta fail rate
10.5%
Cooper fail rate
10.65pp
Difference
Side by side
| Metric | Ford Fiesta | MINI Cooper |
|---|---|---|
| MOT tests analysed | 8,785,208 | 1,603,235 |
| Pass rate | 78.8% | 89.5% |
| Fail rate | 21.1% | 10.5% |
Where they differ
| Category | Fiesta | Cooper |
|---|---|---|
| Lighting & signalling | 12.6% | 3.6% |
| Suspension | 9.8% | 1.1% |
| Brakes | 4.5% | 2.0% |
| Tyres | 6.1% | 5.2% |
| Visibility | 3.9% | 3.8% |
Methodology & source. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.