Ford Focus vs Ford Sierra sapphire glx: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Ford Focus
74%
MOT pass rate · 2,068,317 vehicles
Ford Sierra sapphire glx
100%
MOT pass rate · 9,985 vehicles
Verdict: On MOT pass rate the Ford Focus (74%) and Ford Sierra sapphire glx (100%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Ford Focus | Ford Sierra sapphire glx |
|---|---|---|
| MOT pass rate | 74% | 100% ✓ |
| MOT failure rate | 26% | 0% ✓ |
| Faults & advisories per test | 1.9 | 0.0 ✓ |
| Dangerous-fault share | 2% | — ✓ |
| Average mileage | 107,385 mi | 130,861 mi |
| Sample size (vehicles) | 2,068,317 | 9,985 |
Most common faults
Ford Focus
- 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)
- Offside Rear Tyre worn close to the legal limit (4.1.E.1)
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
Ford Sierra sapphire glx
No fault breakdown available.
Reliability FAQ
On MOT pass rate the Ford Focus (74%) and Ford Sierra sapphire glx (100%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Ford Focus report Full Ford Sierra sapphire glx 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.