Performance by cohort
2 year bands · 1,640 tests
Pass rate climbs 2.8 points across the cohorts — newer R Rover Sport Hse Dyn Phev A examples clear the test more reliably than the early cars.
Pass
87.6%
Fail
9.9%
PRS
1.8%
Avg mileage at test
33,669 mi
Pass
90.4%
Fail
6.0%
PRS
3.0%
Avg mileage at test
28,653 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.