Ford B Max vs Ford S Max
The Ford B Max has the better MOT record of the two — 16.7% fail rate versus 22.7% for the Ford S Max across comparable years. The biggest single difference is body, structure & corrosion, where the S Max records failures noticeably more often.
16.7%
B Max fail rate
22.7%
S Max fail rate
6pp
Difference
Side by side
| Metric | Ford B Max | Ford S Max |
|---|---|---|
| MOT tests analysed | 325,323 | 483,919 |
| Pass rate | 83.3% | 77.3% |
| Fail rate | 16.7% | 22.7% |
Where they differ
| Category | B Max | S Max |
|---|---|---|
| Body, structure & corrosion | 0.0% | 4.5% |
| Visibility | 3.4% | 0.0% |
| Brakes | 2.6% | 5.7% |
| Tyres | 5.1% | 7.5% |
| Suspension | 5.9% | 7.4% |
| Lighting & signalling | 11.0% | 10.9% |
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.