Performance by cohort
2 year bands · 2,635 tests
Pass rate climbs 1.4 points across the cohorts — newer Xceed 3 Isg S A examples clear the test more reliably than the early cars.
Pass
90.5%
Fail
6.3%
PRS
2.9%
Avg mileage at test
27,761 mi
Pass
92.0%
Fail
5.0%
PRS
2.7%
Avg mileage at test
21,539 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.