Performance by cohort
3 year bands · 5,870 tests
Pass rate climbs 4.3 points across the cohorts — newer Tourneo Custom examples clear the test more reliably than the early cars.
Pass
81.3%
Fail
15.0%
PRS
2.6%
Avg mileage at test
104,780 mi
Pass
83.0%
Fail
10.9%
PRS
5.2%
Avg mileage at test
78,783 mi
Pass
85.6%
Fail
10.4%
PRS
2.9%
Avg mileage at test
27,548 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.