Performance by cohort
2 year bands · 2,673 tests
Pass rate climbs 3.0 points across the cohorts — newer Transit 290 Trend Ecoblue examples clear the test more reliably than the early cars.
Pass
80.9%
Fail
14.4%
PRS
2.8%
Avg mileage at test
62,413 mi
Pass
83.9%
Fail
10.2%
PRS
4.1%
Avg mileage at test
49,095 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.