Performance by cohort
2 year bands · 1,900 tests
Pass rate is broadly flat across the cohorts — new and old Transit Custom 290sprt Eblue A examples track each other at the test bay.
Pass
85.9%
Fail
9.0%
PRS
4.9%
Avg mileage at test
57,232 mi
Pass
85.8%
Fail
7.1%
PRS
7.0%
Avg mileage at test
38,976 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.