Performance by cohort
3 year bands · 171,997 tests
Pass rate climbs 15.8 points across the cohorts — newer X Trail examples clear the test more reliably than the early cars.
Pass
74.2%
Fail
22.1%
PRS
3.0%
Avg mileage at test
90,225 mi
Pass
87.2%
Fail
9.9%
PRS
2.5%
Avg mileage at test
41,477 mi
Pass
90.0%
Fail
7.5%
PRS
2.0%
Avg mileage at test
26,635 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.