Best Year to Buy a Bmw M4
Reliability rankings across 7 model years, based on NHTSA owner complaints
Based on 7 model years of NHTSA complaint data, the 2017 Bmw M4 is the most reliable year to buy with a Klunk Score of 100/100 ("Smooth Ride") and only 2 owner complaints. The 2016 model year is the least reliable with 21 complaints and a score of 95/100 ("Smooth Ride").