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Porsche 911 carrera gts s-a vs Porsche Cayenne: reliability comparison

MOT pass rates, common faults and mileage compared from real UK MOT data.

Porsche 911 carrera gts s-a
96%
MOT pass rate · 1,209 vehicles
More reliable
Porsche Cayenne
84%
MOT pass rate · 40,483 vehicles
Verdict: On MOT pass rate, the Porsche 911 carrera gts s-a is the more reliable of the two — 96% pass first time versus 84%. It's one signal among several; check the full breakdown below.

Head to head

Measure Porsche 911 carrera gts s-a Porsche Cayenne
MOT pass rate 96% ✓ 84%
MOT failure rate 4% ✓ 16%
Faults & advisories per test 0.3 ✓ 1.2
Dangerous-fault share 3% 3%
Average mileage 12,889 mi 87,610 mi
Sample size (vehicles) 1,209 40,483

Most common faults

Porsche 911 carrera gts s-a

  1. Nearside Front Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
  2. Offside Front Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
  3. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  6. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Porsche Cayenne

  1. Front Brake pad(s) wearing thin (1.1.13 (a) (ii))
  2. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))
  6. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Reliability FAQ

On MOT pass rate, the Porsche 911 carrera gts s-a is the more reliable of the two — 96% pass first time versus 84%. It's one signal among several; check the full breakdown below.

Full Porsche 911 carrera gts s-a report Full Porsche Cayenne 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.