Performance by cohort
2 year bands · 6,687 tests
Pass rate is broadly flat across the cohorts — new and old T Roc R Line Tsi Evo S A examples track each other at the test bay.
Pass
93.2%
Fail
5.5%
PRS
1.1%
Avg mileage at test
32,242 mi
Pass
93.0%
Fail
5.1%
PRS
1.4%
Avg mileage at test
23,537 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.