Mazda Mx-5 + vs Mercedes-Benz Clk
On MOT-testable defects, the Mazda Mx-5 + (fail rate 18.9%) performed better than the Mercedes-Benz Clk (25.3%) across comparable years. The biggest divergence was suspension, where the Clk recorded failures more often.
18.9%
Mx-5 + fail rate
25.3%
Clk fail rate
6.48pp
Difference
Side by side
| Metric | Mazda Mx-5 + | Mercedes-Benz Clk |
|---|---|---|
| MOT tests analysed | 551,879 | 204,964 |
| Pass rate | 81.1% | 74.7% |
| Fail rate | 18.9% | 25.3% |
Where they differ
| Category | Mx-5 + | Clk |
|---|---|---|
| Suspension | 8.1% | 14.7% |
| Tyres | 0.0% | 6.1% |
| Lighting & signalling | 6.9% | 11.2% |
| Emissions & environmental | 4.2% | 0.0% |
| Brakes | 6.9% | 8.2% |
| Visibility | 3.5% | 4.2% |
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.