Porsche 911 vs Porsche Cayanne hybrid: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Porsche 911
85%
MOT pass rate · 74,656 vehicles
Porsche Cayanne hybrid
92%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Porsche 911 (85%) and Porsche Cayanne hybrid (92%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Porsche 911 | Porsche Cayanne hybrid |
|---|---|---|
| MOT pass rate | 85% | 92% ✓ |
| MOT failure rate | 15% | 8% ✓ |
| Faults & advisories per test | 1.1 | 0.6 ✓ |
| Dangerous-fault share | 1% | 0% ✓ |
| Average mileage | 70,982 mi | 72,168 mi |
| Sample size (vehicles) | 74,656 | 1 |
Most common faults
Porsche 911
- 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)
- Under-trays fitted obscuring some underside components
- 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)
- Oil leak, but not excessive (8.4.1 (a) (i))
Porsche Cayanne hybrid
- 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 Brake pad(s) wearing thin (3.5.1g)
- Offside Front Brake pad(s) wearing thin (3.5.1g)
- Offside Rear wheel noisy (back plate)
- Supplementary Restraint System warning lamp indicates a fault (5.4.2)
Reliability FAQ
On MOT pass rate the Porsche 911 (85%) and Porsche Cayanne hybrid (92%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Porsche 911 report Full Porsche Cayanne hybrid 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.