Performance by cohort
2 year bands · 3,968 tests
Pass rate climbs 4.1 points across the cohorts — newer R Rover Evoque Rdyn S D Mhev A examples clear the test more reliably than the early cars.
Pass
87.9%
Fail
6.4%
PRS
5.7%
Avg mileage at test
31,271 mi
Pass
92.0%
Fail
6.3%
PRS
1.3%
Avg mileage at test
27,832 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.