Morgan Plus Four MOT reliability

Morgan Plus Fours passed their MOT first time 91% of the time across 438 tests in 2025.

First-time pass rate

91%

MOTs analysed

438

Still licensed (GB)

–

Body type

–

Pass rate by year of first registration

Older cars fail more often, so compare a car with others of the same age. Years with very few MOTs can show extreme pass rates, even 0% or 100%, so give more weight to years with more tests.

In detail:

First registered

2020 petrol

57 MOTs

These figures come from 57 MOT tests. That's a fairly small number of cars, so they may not be typical of these cars as a whole.

Passed first time 93%. Typical mileage 10,185 (most between 4,906 and 15,969).

2023: 90% → 2024: 89% → 2025: 93%

Most common failures

Catalyst emissions: Lambda reading after 2nd fast idle outside specified limits (1.8%)
Hand lever: has insufficient reserve travel (1.8%)
Parking brake performance: inoperative on one side (1.8%)
Rbt (sp): efficiency below requirements (1.8%)
Washers: not working (1.8%)

Where 2020 Plus Fours fail

Brakes

5.3%

Exhaust, emissions & leaks

1.8%

Visibility & wipers

1.8%

Looking at a particular car?

See its own MOT history, mileage and red flags, compared with these figures. Free.

Based on 2025 initial MOT tests in DVSA's anonymised MOT dataset (cars and light vans). Contains public sector information licensed under the Open Government Licence v3.0. Model details: Vehicle data by VehiclesDB (CC BY 4.0, adapted).