Mazda 6 vs Skoda Superb
On MOT-testable defects, the Skoda Superb (fail rate 15.7%) performed better than the Mazda 6 (20.3%) across comparable years. The biggest divergence was brakes, where the 6 recorded failures more often.
20.3%
6 fail rate
15.7%
Superb fail rate
4.65pp
Difference
Side by side
| Metric | Mazda 6 | Skoda Superb |
|---|---|---|
| MOT tests analysed | 402,123 | 339,255 |
| Pass rate | 79.7% | 84.3% |
| Fail rate | 20.3% | 15.7% |
Where they differ
| Category | 6 | Superb |
|---|---|---|
| Brakes | 8.5% | 3.1% |
| Lighting & signalling | 8.8% | 5.0% |
| Visibility | 3.6% | 0.0% |
| Emissions & environmental | 0.0% | 1.7% |
| Suspension | 8.2% | 6.5% |
| Tyres | 4.9% | 6.3% |
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.