Performance by cohort
2 year bands · 3,091 tests
Pass rate is broadly flat across the cohorts — new and old Vivaro 2700 Edition S/s examples track each other at the test bay.
Pass
76.2%
Fail
15.2%
PRS
8.2%
Avg mileage at test
61,879 mi
Pass
77.1%
Fail
17.8%
PRS
4.9%
Avg mileage at test
49,557 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.