With Audi’s RS6 pumping out 580hp thanks to its force-fed V10 engine BMW is tipped to be testing a prototype of its M5 saloon with a pair of blowers attached, possibly for a midlife upgrade. Several tuning companies have already proven that a turbocharged M engine can do wonders, and one such company is G-Power.
The German tuner has a twin-turbo version of the M5 with around 730hp on tap with just 0.5bar of boost pressure. That’s close to a 50% increase on the standard M5’s 507hp output and that car is by no means slow.
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