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Porsche Boxster vs Porsche Panamera: 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 Panamera
89%
MOT pass rate · 8,240 vehicles
More reliable
Verdict: On MOT pass rate, the Porsche Panamera is the more reliable of the two — 89% pass first time versus 83%. It's one signal among several; check the full breakdown below.

Head to head

Measure Porsche Boxster Porsche Panamera
MOT pass rate 83% 89% ✓
MOT failure rate 17% 11% ✓
Faults & advisories per test 1.4 0.9 ✓
Dangerous-fault share 1% ✓ 6%
Average mileage 74,547 mi 69,120 mi
Sample size (vehicles) 46,488 8,240

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 Panamera

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

Reliability FAQ

On MOT pass rate, the Porsche Panamera is the more reliable of the two — 89% pass first time versus 83%. It's one signal among several; check the full breakdown below.

Full Porsche Boxster report Full Porsche Panamera 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.