Performance by cohort
2 year bands · 13,035 tests
Pass rate climbs 1.9 points across the cohorts — newer Corolla Design Hev Cvt examples clear the test more reliably than the early cars.
Pass
89.5%
Fail
6.6%
PRS
3.5%
Avg mileage at test
38,964 mi
Pass
91.5%
Fail
5.2%
PRS
3.0%
Avg mileage at test
30,011 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.