Performance by cohort
2 year bands · 2,479 tests
Pass rate is broadly flat across the cohorts — new and old Discovery Sprt Rdyn SE P300e A examples track each other at the test bay.
Pass
88.7%
Fail
9.8%
PRS
0.9%
Avg mileage at test
36,648 mi
Pass
89.1%
Fail
8.5%
PRS
2.2%
Avg mileage at test
33,462 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.