Performance by cohort
2 year bands · 8,391 tests
Pass rate climbs 2.1 points across the cohorts — newer Discovery Sport R Dyn SE D A examples clear the test more reliably than the early cars.
Pass
87.8%
Fail
9.8%
PRS
2.1%
Avg mileage at test
38,296 mi
Pass
90.0%
Fail
8.4%
PRS
1.3%
Avg mileage at test
30,302 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.