Performance by cohort
3 year bands · 137,611 tests
Pass rate climbs 12.7 points across the cohorts — newer S Max examples clear the test more reliably than the early cars.
Pass
71.7%
Fail
22.9%
PRS
4.7%
Avg mileage at test
110,456 mi
Pass
81.6%
Fail
13.5%
PRS
4.5%
Avg mileage at test
44,298 mi
Pass
84.4%
Fail
12.7%
PRS
2.6%
Avg mileage at test
33,060 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.