Performance by cohort
2 year bands · 4,468 tests
Pass rate is broadly flat across the cohorts — new and old Transit Custom 280lmtd Eblue A examples track each other at the test bay.
Pass
81.3%
Fail
11.4%
PRS
6.9%
Avg mileage at test
58,176 mi
Pass
81.1%
Fail
11.6%
PRS
6.2%
Avg mileage at test
44,571 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.