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Porsche Boxster aut vs Porsche Cayenne: reliability comparison

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

Porsche Boxster aut
80%
MOT pass rate · 2 vehicles
Porsche Cayenne
84%
MOT pass rate · 40,483 vehicles
Verdict: On MOT pass rate the Porsche Boxster aut (80%) 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 Boxster aut Porsche Cayenne
MOT pass rate 80% 84% ✓
MOT failure rate 20% 16% ✓
Faults & advisories per test 0.1 ✓ 1.2
Dangerous-fault share 0% ✓ 3%
Average mileage 62,258 mi 87,610 mi
Sample size (vehicles) 2 40,483

Most common faults

Porsche Boxster aut

  1. both front tyres worn on edges
  2. slight corrosion rear brake discs
  3. ** OFFSIDE FRONT TYRE IS ON THE TREAD WEAR LIMIT **
  4. Nearside Headlamp aim too low and too far to the right. (1.8)
  5. Offside Headlamp aim too far to the right (1.8)
  6. Headlamp aim too low (1.8)

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 Boxster aut (80%) and Porsche Cayenne (84%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Porsche Boxster aut 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.