Performance by cohort
3 year bands · 49,325 tests
Pass rate climbs 4.6 points across the cohorts — newer NX examples clear the test more reliably than the early cars.
Pass
89.9%
Fail
6.4%
PRS
3.4%
Avg mileage at test
59,699 mi
Pass
92.3%
Fail
4.8%
PRS
2.7%
Avg mileage at test
35,946 mi
Pass
94.5%
Fail
2.3%
PRS
2.7%
Avg mileage at test
23,795 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.