Fiat 500 vs Fiat Auto-trail v line 670 s: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Fiat 500
77%
MOT pass rate · 333,596 vehicles
Fiat Auto-trail v line 670 s
89%
MOT pass rate · 41 vehicles
Verdict: On MOT pass rate the Fiat 500 (77%) and Fiat Auto-trail v line 670 s (89%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Fiat 500 | Fiat Auto-trail v line 670 s |
|---|---|---|
| MOT pass rate | 77% | 89% ✓ |
| MOT failure rate | 23% | 11% ✓ |
| Faults & advisories per test | 2.0 | 0.4 ✓ |
| Dangerous-fault share | 3% | 0% ✓ |
| Average mileage | 62,906 mi | 17,390 mi |
| Sample size (vehicles) | 333,596 | 41 |
Most common faults
Fiat 500
- Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
- Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
- Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
- Nearside Rear Coil spring corroded (5.3.1 (b) (i))
Fiat Auto-trail v line 670 s
- Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Offside Front Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))
- Both rear tyres are wearing on the inner edges
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Nearside Rear Nail in tyre
- Both front wishbone rear bushes slightly perished no excessive movement
Reliability FAQ
On MOT pass rate the Fiat 500 (77%) and Fiat Auto-trail v line 670 s (89%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Fiat 500 report Full Fiat Auto-trail v line 670 s 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.