Performance by cohort
2 year bands · 2,449 tests
Pass rate climbs 1.3 points across the cohorts — newer Tracer 900 GT examples clear the test more reliably than the early cars.
Pass
95.1%
Fail
2.6%
PRS
2.3%
Avg mileage at test
12,635 mi
Pass
96.4%
Fail
1.2%
PRS
2.4%
Avg mileage at test
8,544 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.