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Porsche Boxster vs Porsche Carrera 3.0: reliability comparison

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

Porsche Boxster
83%
MOT pass rate · 46,488 vehicles
Porsche Carrera 3.0
65%
MOT pass rate · 2 vehicles
Verdict: On MOT pass rate the Porsche Boxster (83%) and Porsche Carrera 3.0 (65%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Porsche Boxster Porsche Carrera 3.0
MOT pass rate 83% ✓ 65%
MOT failure rate 17% ✓ 35%
Faults & advisories per test 1.4 1.4
Dangerous-fault share 1% ✓ 4%
Average mileage 74,547 mi 92,897 mi
Sample size (vehicles) 46,488 2

Most common faults

Porsche Boxster

  1. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  2. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  3. Under-trays fitted obscuring some underside components
  4. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  5. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  6. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Porsche Carrera 3.0

  1. Nearside Headlamp aim too high (1.8)
  2. Offside Headlamp aim beam image obviously incorrect (1.8.A.1b)
  3. Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b))
  4. Front registration plate missing (6.3.1a)
  5. Offside Headlamp aim too high (1.8)
  6. Rear registration plate missing (6.3.1a)

Reliability FAQ

On MOT pass rate the Porsche Boxster (83%) and Porsche Carrera 3.0 (65%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Porsche Boxster report Full Porsche Carrera 3.0 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.