Performance by cohort
2 year bands · 3,187 tests
Pass rate climbs 1.4 points across the cohorts — newer TX Vista Comfort Plus examples clear the test more reliably than the early cars.
Pass
88.2%
Fail
4.9%
PRS
4.3%
Avg mileage at test
138,207 mi
Pass
89.6%
Fail
4.4%
PRS
5.3%
Avg mileage at test
125,834 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.