Performance by cohort
2 year bands · 30,392 tests
Pass rate climbs 4.3 points across the cohorts — newer 220 examples clear the test more reliably than the early cars.
Pass
85.1%
Fail
11.7%
PRS
2.9%
Avg mileage at test
66,184 mi
Pass
89.4%
Fail
8.2%
PRS
2.1%
Avg mileage at test
40,349 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.