League table/CUSTOM
Make report · 2005–2025
CUSTOM
83.5%
first-time pass rate
8.8%
failed outright
170
MOT tests, 2005–2025
What fails a CUSTOM
failure defects across all CUSTOM models · advisories excluded
lighting and signalling is CUSTOM's most common failure — 5.3% of all CUSTOM tests record one.
| Component group | Share of defects | % of tests | Worst offenders |
|---|---|---|---|
| lighting and signalling |
|
5.3 | see ranking |
| brakes |
|
4.1 | see ranking |
| steering and suspension |
|
1.8 | see ranking |
| reg plates and vin |
|
0.6 | — |
| fuel and exhaust |
|
1.2 | see ranking |
Top failure groups aggregated across every CUSTOM model, 2005–2025. "% of tests" = share of the make's tests recording at least one defect in that group.
CUSTOM models, ranked by test volume
0 models with ≥ 100 normal tests, 2005–2025
| Model | Pass rate | Pass % | Fail % | Median miles | Tests |
|---|
Normal tests only. Median miles is odometer reading at test where recorded. Source: DVSA anonymised MOT results, 2005–2025.