The absolute masters of power when it comes to BMWs have announced today that their G-Power Hurricane RR BMW M5 managed to reach a top speed of ... wait for it... 372 km/h! This makes the G-Power Hurricane RR BMW M5 the fastest four-door sedan in the world. The G-Power Hurricane RR BMW M5 is fitted with the V10 engine that has two ASA T1-316 superchargers that can take the power output to a