Performance by cohort
2 year bands · 5,280 tests
Pass rate drops 2.2 points across the cohorts — recent T Roc Sel Tsi Evo S A examples are doing worse than the early cars at the same tested age.
Pass
95.7%
Fail
2.6%
PRS
1.4%
Avg mileage at test
26,167 mi
Pass
93.5%
Fail
4.0%
PRS
2.1%
Avg mileage at test
22,142 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.