World's Fastest BMW F10 M5: Manhart Racing's MH5 [Video]
According to a video posted on Youtube, their creation, called MH5 S Biturbo, has 710 HP coming out of the S63 4.4-liter V8 engine. No additional info about the specs is available at the moment but they claim that their creation is the fastest F10 M5 in the world at the moment. With times like 100-200 km/h (62-125 mph) in 6.3 seconds and 80-250 km/h (50-155 mph) in 14.1 seconds the car is definitely fast.
However, the Manhart Racing site claims that their program for the F10 M5 can take the V8 engine up to 750 HP. That means that we can expect a new, faster M5 made by the German tuners in the next weeks.
Let's not forget about G-Power's Hurricane RR though. The turbocharged E60 M5 has 800 HP and 590 lb-ft (800 Nm) of torque and does 0-100 km/h (0-62 mph) in 4.3 seconds and 0-200 km/h (0-125 mph) in 9.5 seconds. Those times seem better than the MH5's. However, we're not talking about the fastest M5 around, we're talking about the fastest F10 M5 and Manhart seems to have the lead for the moment.