Performance by cohort
2 year bands · 3,750 tests
Pass rate climbs 2.2 points across the cohorts — newer 220d M Sport Auto examples clear the test more reliably than the early cars.
Pass
89.3%
Fail
8.9%
PRS
1.4%
Avg mileage at test
38,864 mi
Pass
91.5%
Fail
7.8%
PRS
0.5%
Avg mileage at test
32,582 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.