Performance by cohort
3 year bands · 526,817 tests
Pass rate climbs 10.7 points across the cohorts — newer Jazz examples clear the test more reliably than the early cars.
Pass
75.5%
Fail
18.5%
PRS
5.4%
Avg mileage at test
70,390 mi
Pass
91.4%
Fail
5.6%
PRS
2.7%
Avg mileage at test
24,851 mi
Pass
86.3%
Fail
6.4%
PRS
7.3%
Avg mileage at test
42,858 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.