2018 MINI John Cooper Works MOT pass rate: 87.7% (8,536 tests)
Is the 2018 John Cooper Works getting worse?
Pass rate of 2018-registered cars across recent test years:
| Test year | Pass rate | |
|---|---|---|
| 2023 | 87.4% -0.6 vs same-age |
|
| 2024 | 89.0% +2.8 vs same-age |
|
| 2025 | 86.6% +1.8 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 2018 John Cooper Works
| # | System | Defects recorded | Share |
|---|---|---|---|
| 1 | Tyres | 956 | 61.1% |
| 2 | Visibility | 181 | 11.6% |
| 3 | Brakes | 149 | 9.5% |
| 4 | Suspension | 62 | 4.0% |
| 5 | Road Wheels | 60 | 3.8% |
| 6 | Lamps, reflectors and electrical equipment | 59 | 3.8% |
All John Cooper Works years compared
| Registration year | Tests | Pass rate | Vs same-age | Median mileage |
|---|---|---|---|---|
| 2013 | 2,183 | 82.8% | +9.5 pts | 64,273 |
| 2015 | 4,907 | 85.4% | +6.7 pts | 53,831 |
| 2016 | 6,081 | 85.8% | +4.5 pts | 46,445 |
| 2017 | 9,115 | 86.7% | +2.7 pts | 40,569 |
| 2018 (this page) | 8,536 | 87.7% | +1.3 pts | 34,829 |
| 2019 | 8,016 | 91.0% | +2.6 pts | 26,890 |
| 2020 | 8,362 | 91.3% | +1.3 pts | 23,448 |
| 2021 | 5,172 | 92.2% | +1.8 pts | 22,380 |
| 2022 | 2,488 | 92.6% | +1.4 pts | 18,742 |
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FAQs
Is a 2018 MINI John Cooper Works reliable?
2018-registered examples passed 87.7% of their MOT tests (8,536 tests, 2023–2025), +1.3 points versus all UK cars registered in the same year. At roughly 8 years old with a median 34,829 miles, condition now varies car by car — always check the individual MOT history.
What mileage is too high for a 2018 John Cooper Works?
The median tested example shows 34,829 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.