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Porsche 996 coupe vs Porsche Cayenne: reliability comparison

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

Porsche 996 coupe
91%
MOT pass rate · 1 vehicles
Porsche Cayenne
84%
MOT pass rate · 40,483 vehicles
Verdict: On MOT pass rate the Porsche 996 coupe (91%) and Porsche Cayenne (84%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Porsche 996 coupe Porsche Cayenne
MOT pass rate 91% ✓ 84%
MOT failure rate 9% ✓ 16%
Faults & advisories per test 0.3 ✓ 1.2
Dangerous-fault share 0% ✓ 3%
Average mileage 60,116 mi 87,610 mi
Sample size (vehicles) 1 40,483

Most common faults

Porsche 996 coupe

  1. front n/plate cracked
  2. Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))
  3. front brake discs starting to wear
  4. small stone chip middle front screen bottom has been repaired
  5. can not check outer door sills trims fitted
  6. tyre wear starting on both front inner edges

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 996 coupe (91%) and Porsche Cayenne (84%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Porsche 996 coupe 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.