2020 Ford Mustang MOT pass rate: 88.3% (2,579 tests)
Is the 2020 Mustang getting worse?
Pass rate of 2020-registered cars across recent test years:
| Test year | Pass rate | |
|---|---|---|
| 2023 | 90.0% -0.8 vs same-age |
|
| 2024 | 87.0% -3.0 vs same-age |
|
| 2025 | 87.8% -1.2 vs same-age |
The raw rate normally falls as cars age. The “vs same-age” figure compares this cohort with all UK cars registered in the same year, so normal ageing is not mistaken for a bad model year.
What fails on a 2020 Mustang
| # | System | Defects recorded | Share |
|---|---|---|---|
| 1 | Tyres | 200 | 36.6% |
| 2 | Brakes | 166 | 30.3% |
| 3 | Visibility | 99 | 18.1% |
| 4 | Lamps, reflectors and electrical equipment | 27 | 4.9% |
| 5 | Identification of the vehicle | 23 | 4.2% |
| 6 | Noise, emissions and leaks | 17 | 3.1% |
All Mustang years compared
| Registration year | Tests | Pass rate | Vs same-age | Median mileage |
|---|---|---|---|---|
| 2016 | 7,589 | 83.7% | +2.4 pts | 33,190 |
| 2017 | 5,601 | 84.6% | +0.5 pts | 29,522 |
| 2018 | 6,189 | 85.1% | -1.2 pts | 26,989 |
| 2019 | 3,597 | 86.3% | -2.1 pts | 20,123 |
| 2020 (this page) | 2,579 | 88.3% | -1.7 pts | 16,423 |
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FAQs
Is a 2020 Ford Mustang reliable?
2020-registered examples passed 88.3% of their MOT tests (2,579 tests, 2023–2025), -1.7 points versus all UK cars registered in the same year. At roughly 6 years old with a median 16,423 miles, condition now varies car by car — always check the individual MOT history.
What mileage is too high for a 2020 Mustang?
The median tested example shows 16,423 miles. Anything far beyond that isn't automatically bad — a motorway-mile car with consistent service records often beats a low-mileage school-run car — but price accordingly and scrutinise the mileage trail for gaps or drops.
Source: DVSA Anonymised MOT tests and results, 2023–2025 extracts (96 million Class 4 initial tests; retests excluded). Only vehicles old enough for a routine first MOT are included. Age-adjusted figures compare the model-year cohort with all vehicles of the same registration year tested in the same calendar year. Contains public sector information licensed under OGL v3.0.