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Porsche 911 vs Porsche Panamera 4 s-a: reliability comparison

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

Porsche 911
85%
MOT pass rate · 74,656 vehicles
Porsche Panamera 4 s-a
94%
MOT pass rate · 194 vehicles
Verdict: On MOT pass rate the Porsche 911 (85%) and Porsche Panamera 4 s-a (94%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Porsche 911 Porsche Panamera 4 s-a
MOT pass rate 85% 94% ✓
MOT failure rate 15% 6% ✓
Faults & advisories per test 1.1 0.2 ✓
Dangerous-fault share 1% 0% ✓
Average mileage 70,982 mi 48,444 mi
Sample size (vehicles) 74,656 194

Most common faults

Porsche 911

  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. Oil leak, but not excessive (8.4.1 (a) (i))

Porsche Panamera 4 s-a

  1. Front Brake pad(s) wearing thin (1.1.13 (a) (ii))
  2. Nearside Front Headlamp aim too high (4.1.2 (a))
  3. Nearside Rear Seat belt retracting mechanism defective (7.1.2 (e))
  4. Offside Front Headlamp aim too low (4.1.2 (a))
  5. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Reliability FAQ

On MOT pass rate the Porsche 911 (85%) and Porsche Panamera 4 s-a (94%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Porsche 911 report Full Porsche Panamera 4 s-a 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.