Performance by cohort
2 year bands · 1,428 tests
Pass rate drops 1.2 points across the cohorts — recent Q7 Sln Blk ED 55tfsi Mhev QT A examples are doing worse than the early cars at the same tested age.
Pass
93.2%
Fail
4.7%
PRS
1.6%
Avg mileage at test
38,118 mi
Pass
92.0%
Fail
7.2%
PRS
0.1%
Avg mileage at test
30,927 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.