BMW M4 Smashes Into M3 After Track Day Brake Failure

This huge shunt happened recently at Autódromo Hermanos Rodríguez near Mexico City. According to the uploader, caused by the BMW M4’s brakes failing. Both drivers were said to be “OK” following the accident, although be the looks of it, the same can’t be said for the M4 nor the E92 M3 it hit….