Performance by cohort
2 year bands · 1,300 tests
Pass rate climbs 3.1 points across the cohorts — newer 5008 Allure Puretech S/s examples clear the test more reliably than the early cars.
Pass
84.0%
Fail
11.0%
PRS
3.9%
Avg mileage at test
36,197 mi
Pass
87.1%
Fail
11.4%
PRS
1.1%
Avg mileage at test
27,454 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.