Performance by cohort
3 year bands · 281,205 tests
Pass rate climbs 11.4 points across the cohorts — newer Caddy examples clear the test more reliably than the early cars.
Pass
74.3%
Fail
20.3%
PRS
4.8%
Avg mileage at test
122,925 mi
Pass
83.0%
Fail
12.4%
PRS
4.1%
Avg mileage at test
63,633 mi
Pass
85.7%
Fail
10.3%
PRS
3.3%
Avg mileage at test
27,533 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.