Porsche 911 vs Porsche Gemballa avalanche: 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 Gemballa avalanche
60%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Porsche 911 (85%) and Porsche Gemballa avalanche (60%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Porsche 911 | Porsche Gemballa avalanche |
|---|---|---|
| MOT pass rate | 85% ✓ | 60% |
| MOT failure rate | 15% ✓ | 40% |
| Faults & advisories per test | 1.1 ✓ | 3.0 |
| Dangerous-fault share | 1% ✓ | 7% |
| Average mileage | 70,982 mi | 54,499 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 Gemballa avalanche
- Undertrays fitted
- Front Headlamp aim beam image kick up to the offside Both (1.8)
- Front Headlamp not working on dipped beam Both stuck on main beam (1.7.5a)
- Headlamp aim not tested (1.8.A.1c)
- Nearside Front Driver's door cannot be opened from outside the vehicle (6.2.B.1b)
- Rear Direction indicator incorrect colour Both (1.4.A.2f)
Reliability FAQ
On MOT pass rate the Porsche 911 (85%) and Porsche Gemballa avalanche (60%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Porsche 911 report Full Porsche Gemballa avalanche 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.