Performance by cohort
3 year bands · 9,681 tests
Pass rate drops 3.3 points across the cohorts — recent E Nv200 examples are doing worse than the early cars at the same tested age.
Pass
85.7%
Fail
7.6%
PRS
6.7%
Avg mileage at test
58,998 mi
Pass
76.6%
Fail
17.8%
PRS
4.9%
Avg mileage at test
36,330 mi
Pass
82.5%
Fail
12.2%
PRS
5.1%
Avg mileage at test
21,340 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.