Performance by cohort
3 year bands · 139,855 tests
Pass rate drops 1.8 points across the cohorts — recent Transit Custom examples are doing worse than the early cars at the same tested age.
Pass
78.3%
Fail
16.0%
PRS
4.9%
Avg mileage at test
88,464 mi
Pass
81.3%
Fail
12.5%
PRS
5.3%
Avg mileage at test
75,842 mi
Pass
76.5%
Fail
17.0%
PRS
5.0%
Avg mileage at test
44,445 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.