Performance by cohort
2 year bands · 3,641 tests
Pass rate drops 3.0 points across the cohorts — recent RR Sport Hse Dyn Black P400e A examples are doing worse than the early cars at the same tested age.
Pass
94.7%
Fail
3.8%
PRS
1.1%
Avg mileage at test
37,134 mi
Pass
91.7%
Fail
6.3%
PRS
1.7%
Avg mileage at test
29,587 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.