Performance by cohort
2 year bands · 2,936 tests
Pass rate drops 4.0 points across the cohorts — recent Fiesta Titanium X Turbo Mhev examples are doing worse than the early cars at the same tested age.
Pass
91.4%
Fail
5.0%
PRS
2.9%
Avg mileage at test
24,267 mi
Pass
87.4%
Fail
5.9%
PRS
6.6%
Avg mileage at test
21,661 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.