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Porsche 912 e vs Porsche Boxster: reliability comparison

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

Porsche 912 e
69%
MOT pass rate · 3 vehicles
Porsche Boxster
83%
MOT pass rate · 46,488 vehicles
Verdict: On MOT pass rate the Porsche 912 e (69%) and Porsche Boxster (83%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Porsche 912 e Porsche Boxster
MOT pass rate 69% 83% ✓
MOT failure rate 31% 17% ✓
Faults & advisories per test 2.7 1.4 ✓
Dangerous-fault share 0% ✓ 1%
Average mileage 139,179 mi 74,547 mi
Sample size (vehicles) 3 46,488

Most common faults

Porsche 912 e

  1. Oil leak, but not excessive (8.4.1 (a) (i))
  2. Nearside Stop lamp not working (1.2.1b)
  3. Nearside Rear Upper Anti-roll bar has slight play in a pin/bush (2.4.G.2)
  4. Nearside Rear hub seal weeping
  5. Offside Front Direction indicator lens defective which has no effect on emitted light (4.4.1 (b) (i))
  6. Offside Rear Anti-roll bar linkage pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

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))

Reliability FAQ

On MOT pass rate the Porsche 912 e (69%) and Porsche Boxster (83%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Porsche 912 e report Full Porsche Boxster 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.