It was precisely a week ago when G-Power let loose a BMW M8 with a copious amount of power and now the tuner is doing the same with this flashy M5. It’s called the Hurricane RS and wears an orange metallic body wrap priced at €3,800 (about £3,350), but not on that carbon fibre bonnet (€5,236 / £4,625) with a centre bulge flanked by vertical vents.

The super saloon rides on 21-inch forged wheels with Michelin tyres available as a full set for €9,545 (£8,400) and swaps out the stock exhaust system for a titanium setup with quad 100-mm tips bathed in carbon fibre. As with the other upgrades, the custom exhaust tailored to the M5 on tuner steroids is not exactly cheap, with G-Power asking a hefty €8,449 (£7,465).

Gallery: BMW M5 Hurricane RS by G-Power

By far the biggest change the four-door supercar has gone through is underneath the bonnet where the twin-turbo 4.4-litre V8 has been massaged to deliver an astounding 829 bhp and 1,050 Newton-metres (774 pound-feet) of torque. It now needs a Bugatti Veyron-matching two and a half seconds to complete the sprint to 62 mph (100 km/h) and will continue to accelerate until hitting 217 mph (350 km/h).

The massive power gain of more than 200 bhp compared to a stock M5 Competition was obtained through a custom pair of turbochargers (€5,990 / £5,300), the aforementioned exhaust, along with a variety of other hardware and software tweaks. Interestingly, G-Power mentions the car’s impressive top speed is actually electronically governed to protect the tyres and mentions 217 mph is “probably a long way short of what the Hurricane RS is capable of” without the limiter.

Rumour has it BMW itself will be giving the M5 more power by introducing a hotter CS special edition with a new twin-turbo V8 codenamed “S68” said to deliver more than the 617 bhp offered by the M5 Competition. If the report is accurate, the M5 CS will probably be based on the facelifted 5 Series / M5 we’ve spotted several times already.