Ford B Max vs Vauxhall Zafira
On MOT-testable defects the Ford B Max comes out ahead: 16.7% of its tests record a failure against 24.2% for the Vauxhall Zafira, a 7.5-point gap. The biggest single difference is emissions & environmental, where the Zafira records failures noticeably more often.
16.7%
B Max fail rate
24.2%
Zafira fail rate
7.51pp
Difference
Side by side
| Metric | Ford B Max | Vauxhall Zafira |
|---|---|---|
| MOT tests analysed | 325,323 | 1,459,127 |
| Pass rate | 83.3% | 75.8% |
| Fail rate | 16.7% | 24.2% |
Where they differ
| Category | B Max | Zafira |
|---|---|---|
| Emissions & environmental | 0.0% | 6.2% |
| Brakes | 2.6% | 7.4% |
| Suspension | 5.9% | 10.6% |
| Visibility | 3.4% | 0.0% |
| Tyres | 5.1% | 6.9% |
| Lighting & signalling | 11.0% | 12.1% |
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.