Performance by cohort
2 year bands · 2,395 tests
Pass rate is broadly flat across the cohorts — new and old Focus Active X Edition Mhev examples track each other at the test bay.
Pass
92.5%
Fail
5.9%
PRS
1.3%
Avg mileage at test
28,911 mi
Pass
93.3%
Fail
4.6%
PRS
1.9%
Avg mileage at test
23,433 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.