Thinking about buying a high-mileage BMW M4 or M3? In this F8X buyer’s guide, we break down the pros, cons, common issues, and what to look out for before making a purchase. Watch before you buy!

When the F8x M3 and M4 models were launched, BMW’s first-ever turbocharged M car, the F10 M5, had already been on sale for a couple of years and showcased the incredible performance offered by ...