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Mg 4 trophy extended range vs Mg Zs: reliability comparison

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

Mg 4 trophy extended range
95%
MOT pass rate · 1,984 vehicles
Mg Zs
74%
MOT pass rate · 38,862 vehicles
Verdict: On MOT pass rate the Mg 4 trophy extended range (95%) and Mg Zs (74%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Mg 4 trophy extended range Mg Zs
MOT pass rate 95% ✓ 74%
MOT failure rate 5% ✓ 26%
Faults & advisories per test 0.3 ✓ 1.8
Dangerous-fault share 17% 1% ✓
Average mileage 27,664 mi 71,653 mi
Sample size (vehicles) 1,984 38,862

Most common faults

Mg 4 trophy extended range

  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. Nearside Front Tyre has a cut but not deep enough to reach the ply or cords (5.2.3 (d) (i))
  4. Front Tyre worn close to legal limit/worn on edge both, n/s cut outer (5.2.3 (e))
  5. Nearside Rear Tyre tread depth below requirements of 1.6mm (5.2.3 (e))
  6. Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))

Mg Zs

  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. Parking brake: efficiency below requirements (3.7.B.7)
  4. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  5. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  6. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Reliability FAQ

On MOT pass rate the Mg 4 trophy extended range (95%) and Mg Zs (74%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Mg 4 trophy extended range report Full Mg Zs 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.