Performance by cohort
2 year bands · 4,405 tests
Pass rate drops 2.5 points across the cohorts — recent Grandland X Elite Nav Turbo A examples are doing worse than the early cars at the same tested age.
Pass
92.2%
Fail
6.5%
PRS
1.0%
Avg mileage at test
25,836 mi
Pass
89.7%
Fail
6.6%
PRS
3.3%
Avg mileage at test
28,846 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.