Performance by cohort
2 year bands · 2,000 tests
Pass rate drops 14.3 points across the cohorts — recent 220i Luxury Auto examples are doing worse than the early cars at the same tested age.
Pass
90.4%
Fail
7.6%
PRS
1.8%
Avg mileage at test
28,803 mi
Pass
76.1%
Fail
12.8%
PRS
11.1%
Avg mileage at test
21,565 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.