Audi A3 vs Vauxhall Astra
On MOT-testable defects, the Audi A3 (fail rate 17.7%) performed better than the Vauxhall Astra (22.4%) across comparable years. The biggest divergence was visibility, where the Astra recorded failures more often.
17.7%
A3 fail rate
22.4%
Astra fail rate
4.64pp
Difference
Side by side
| Metric | Audi A3 | Vauxhall Astra |
|---|---|---|
| MOT tests analysed | 2,403,046 | 4,330,153 |
| Pass rate | 82.3% | 77.6% |
| Fail rate | 17.7% | 22.4% |
Where they differ
| Category | A3 | Astra |
|---|---|---|
| Visibility | 0.0% | 4.5% |
| Lighting & signalling | 7.0% | 10.6% |
| Emissions & environmental | 2.6% | 0.0% |
| Suspension | 7.4% | 10.1% |
| Brakes | 4.7% | 7.3% |
| Tyres | 6.3% | 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.