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Mazda 6 vs Mazda Rx-8 pz: reliability comparison

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

Mazda 6
75%
MOT pass rate · 159,403 vehicles
Mazda Rx-8 pz
71%
MOT pass rate · 33 vehicles
Verdict: On MOT pass rate the Mazda 6 (75%) and Mazda Rx-8 pz (71%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Mazda 6 Mazda Rx-8 pz
MOT pass rate 75% ✓ 71%
MOT failure rate 25% ✓ 29%
Faults & advisories per test 1.9 0.1 ✓
Dangerous-fault share 2% 0% ✓
Average mileage 113,866 mi 72,143 mi
Sample size (vehicles) 159,403 33

Most common faults

Mazda 6

  1. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  2. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  3. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  4. Rear Brake pad(s) wearing thin (3.5.1g)
  5. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  6. Under-trays fitted obscuring some underside components

Mazda Rx-8 pz

  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. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  4. Offside Rear Upper Anti-roll bar linkage insecure (2.4.G.1)

Reliability FAQ

On MOT pass rate the Mazda 6 (75%) and Mazda Rx-8 pz (71%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Mazda 6 report Full Mazda Rx-8 pz 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.