Performance by cohort
3 year bands · 136,472 tests
Pass rate climbs 3.4 points across the cohorts — newer Q2 examples clear the test more reliably than the early cars.
Pass
90.4%
Fail
7.5%
PRS
1.9%
Avg mileage at test
50,215 mi
Pass
91.6%
Fail
6.2%
PRS
1.8%
Avg mileage at test
36,960 mi
Pass
93.8%
Fail
4.7%
PRS
1.2%
Avg mileage at test
24,956 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.