Performance by cohort
2 year bands · 6,144 tests
Pass rate climbs 3.3 points across the cohorts — newer Polestar 2 Pilot Plus EV Awd examples clear the test more reliably than the early cars.
Pass
87.3%
Fail
10.6%
PRS
1.1%
Avg mileage at test
40,212 mi
Pass
90.6%
Fail
8.2%
PRS
1.0%
Avg mileage at test
35,495 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.