Performance by cohort
2 year bands · 2,383 tests
Pass rate climbs 2.5 points across the cohorts — newer E UP examples clear the test more reliably than the early cars.
Pass
90.0%
Fail
7.2%
PRS
1.7%
Avg mileage at test
17,021 mi
Pass
92.6%
Fail
5.3%
PRS
1.9%
Avg mileage at test
16,472 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.