Toyota Gt4 vs Toyota Yaris: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Toyota Gt4
68%
MOT pass rate · 4 vehicles
Toyota Yaris
78%
MOT pass rate · 631,425 vehicles
Verdict: On MOT pass rate the Toyota Gt4 (68%) and Toyota Yaris (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Toyota Gt4 | Toyota Yaris |
|---|---|---|
| MOT pass rate | 68% | 78% ✓ |
| MOT failure rate | 32% | 22% ✓ |
| Faults & advisories per test | 2.8 | 1.7 ✓ |
| Dangerous-fault share | 0% ✓ | 2% |
| Average mileage | 131,312 mi | 85,387 mi |
| Sample size (vehicles) | 4 | 631,425 |
Most common faults
Toyota Gt4
- Nearside Front Brake pad(s) wearing thin (3.5.1g)
- Nearside Rear Brake pad(s) wearing thin (3.5.1g)
- Nearside Rear brake disc slightly scored (3.5.1h)
- Offside Front Brake pad(s) wearing thin (3.5.1g)
- Offside Rear Brake pad(s) wearing thin (3.5.1g)
- Offside Rear Rear wheel bearing has slight play (2.6.2)
Toyota Yaris
- Nearside Front 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 the legal limit (4.1.E.1)
- Offside 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))
- Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
Reliability FAQ
On MOT pass rate the Toyota Gt4 (68%) and Toyota Yaris (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Toyota Gt4 report Full Toyota Yaris 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.