Performance by cohort
2 year bands · 1,435 tests
Pass rate climbs 5.3 points across the cohorts — newer Transit 460 Trend Ecoblue examples clear the test more reliably than the early cars.
Pass
85.3%
Fail
11.0%
PRS
2.3%
Avg mileage at test
36,288 mi
Pass
90.6%
Fail
4.8%
PRS
3.5%
Avg mileage at test
16,938 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.