Performance by cohort
2 year bands · 1,361 tests
Pass rate climbs 1.2 points across the cohorts — newer Puma ST Line Vignale Auto examples clear the test more reliably than the early cars.
Pass
93.7%
Fail
4.9%
PRS
1.5%
Avg mileage at test
22,954 mi
Pass
94.9%
Fail
3.9%
PRS
0.9%
Avg mileage at test
18,228 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.