Performance by cohort
2 year bands · 8,534 tests
Pass rate drops 1.9 points across the cohorts — recent Transit Custom 300 Trend Eblue examples are doing worse than the early cars at the same tested age.
Pass
80.3%
Fail
14.1%
PRS
5.0%
Avg mileage at test
68,709 mi
Pass
78.4%
Fail
16.3%
PRS
4.6%
Avg mileage at test
56,532 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.