Citroen C1 vs Toyota Aygo
On MOT-testable defects, the Toyota Aygo (fail rate 15.4%) performed better than the Citroen C1 (18.9%) across comparable years. The biggest divergence was lighting & signalling, where the C1 recorded failures more often.
18.9%
C1 fail rate
15.4%
Aygo fail rate
3.41pp
Difference
Side by side
| Metric | Citroen C1 | Toyota Aygo |
|---|---|---|
| MOT tests analysed | 994,636 | 1,413,143 |
| Pass rate | 81.2% | 84.6% |
| Fail rate | 18.9% | 15.4% |
Where they differ
| Category | C1 | Aygo |
|---|---|---|
| Lighting & signalling | 10.6% | 8.3% |
| Brakes | 7.8% | 6.4% |
| Tyres | 5.4% | 4.6% |
| Suspension | 4.5% | 4.0% |
| Visibility | 4.0% | 3.7% |
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.