Performance by cohort
2 year bands · 1,494 tests
Pass rate drops 2.8 points across the cohorts — recent Sx4 S Cross SZ T B Jet Mhev examples are doing worse than the early cars at the same tested age.
Pass
94.3%
Fail
1.6%
PRS
3.3%
Avg mileage at test
27,087 mi
Pass
91.4%
Fail
4.1%
PRS
4.2%
Avg mileage at test
21,691 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.