Performance by cohort
2 year bands · 1,767 tests
Pass rate is broadly flat across the cohorts — new and old Vivaro 2700 Dynamic S/s examples track each other at the test bay.
Pass
77.2%
Fail
14.0%
PRS
8.6%
Avg mileage at test
60,090 mi
Pass
78.0%
Fail
13.2%
PRS
7.8%
Avg mileage at test
50,915 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.