Fiat 500 vs Fiat Adria twin 640 sl: 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 Adria twin 640 sl
—
MOT pass rate · 3 vehicles
Verdict: On MOT pass rate the Fiat 500 (77%) and Fiat Adria twin 640 sl (0%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Fiat 500 | Fiat Adria twin 640 sl |
|---|---|---|
| MOT pass rate | 77% ✓ | 0% |
| MOT failure rate | 23% | 0% ✓ |
| Faults & advisories per test | 2.0 | 0.0 ✓ |
| Dangerous-fault share | 3% | — ✓ |
| Average mileage | 62,906 mi | — |
| Sample size (vehicles) | 333,596 | 3 |
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 Adria twin 640 sl
No fault breakdown available.
Reliability FAQ
On MOT pass rate the Fiat 500 (77%) and Fiat Adria twin 640 sl (0%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Fiat 500 report Full Fiat Adria twin 640 sl 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.