Performance by cohort
2 year bands · 2,533 tests
Pass rate climbs 3.4 points across the cohorts — newer Transit Custom 290 Sport Eblue examples clear the test more reliably than the early cars.
Pass
83.5%
Fail
11.4%
PRS
4.6%
Avg mileage at test
50,669 mi
Pass
86.8%
Fail
9.5%
PRS
3.2%
Avg mileage at test
38,337 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.