Hyundai N boss Albert Biermann knows what it takes to build a range of performance cars. He did for years as the main man over at BMW’s M Division. But now that he’s switched from the M to the N, Biermann has taken great lengths to criticize his former employer every chance he gets. This time, Biermann didn’t mince his words, saying that BMW has resorted to slapping the M badge on every model it sees. Shots fired, again.