Performance by cohort
2 year bands · 1,602 tests
Pass rate climbs 3.1 points across the cohorts — newer Kuga ST Line X Edition examples clear the test more reliably than the early cars.
Pass
90.9%
Fail
8.0%
PRS
0.9%
Avg mileage at test
32,903 mi
Pass
94.0%
Fail
3.9%
PRS
1.7%
Avg mileage at test
22,531 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.