Performance by cohort
2 year bands · 1,657 tests
Pass rate climbs 1.9 points across the cohorts — newer Leon FR Etsi S A examples clear the test more reliably than the early cars.
Pass
89.8%
Fail
6.1%
PRS
3.5%
Avg mileage at test
34,722 mi
Pass
91.6%
Fail
6.1%
PRS
1.7%
Avg mileage at test
32,118 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.