Performance by cohort
3 year bands · 5,377 tests
Pass rate climbs 22.7 points across the cohorts — newer Puma examples clear the test more reliably than the early cars.
Pass
67.0%
Fail
28.6%
PRS
3.3%
Avg mileage at test
79,603 mi
Pass
88.7%
Fail
10.6%
PRS
0.2%
Avg mileage at test
26,310 mi
Pass
89.7%
Fail
4.7%
PRS
5.7%
Avg mileage at test
20,106 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.