Mazda 6 vs Mazda Roadstr: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Mazda 6
75%
MOT pass rate · 159,403 vehicles
Mazda Roadstr
74%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Mazda 6 (75%) and Mazda Roadstr (74%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Mazda 6 | Mazda Roadstr |
|---|---|---|
| MOT pass rate | 75% ✓ | 74% |
| MOT failure rate | 25% ✓ | 26% |
| Faults & advisories per test | 1.9 | 1.0 ✓ |
| Dangerous-fault share | 2% | 0% ✓ |
| Average mileage | 113,866 mi | 73,603 mi |
| Sample size (vehicles) | 159,403 | 1 |
Most common faults
Mazda 6
- Nearside Front Tyre worn close to the legal limit (4.1.E.1)
- Offside Front Tyre worn close to the legal limit (4.1.E.1)
- Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
- Rear Brake pad(s) wearing thin (3.5.1g)
- Offside Rear Tyre worn close to the legal limit (4.1.E.1)
- Under-trays fitted obscuring some underside components
Mazda Roadstr
- Central Exhaust has a minor leak of exhaust gases (6.1.2 (a))
- Nearside Front Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))
- Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
- Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
- near sides rear rust
- Nearside Front Headlamp lens slightly defective (4.1.1 (b) (i))
Reliability FAQ
On MOT pass rate the Mazda 6 (75%) and Mazda Roadstr (74%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Mazda 6 report Full Mazda Roadstr report Most reliable cars
Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.