Performance by cohort
2 year bands · 6,444 tests
Pass rate climbs 2.9 points across the cohorts — newer Tge 3.140 examples clear the test more reliably than the early cars.
Pass
80.3%
Fail
14.3%
PRS
4.3%
Avg mileage at test
106,620 mi
Pass
83.2%
Fail
11.1%
PRS
4.9%
Avg mileage at test
79,391 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.