Performance by cohort
2 year bands · 8,561 tests
Pass rate drops 1.1 points across the cohorts — recent Polo Match Tsi S A examples are doing worse than the early cars at the same tested age.
Pass
90.7%
Fail
6.1%
PRS
2.9%
Avg mileage at test
23,375 mi
Pass
89.6%
Fail
6.8%
PRS
3.5%
Avg mileage at test
21,900 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.