The BMW M5 CS is already a weapon in factory form. 635 horsepower, zero to sixty in roughly three seconds, a limiter set at 305 km/h. What's left to improve? G-Power asked the opposite question — why stop, when you can keep going? The result is the Hurricane RR: 900 hp, 1,050 Nm, and a top speed of 333 km/h. The line separating this sedan from supersonic just got thinner.
This isn't one of those builds where a tuner uploads new software and cashes the cheque. To make the 4.4-litre V8 S63B44T4 survive that kind of output, G-Power swapped in forged pistons and connecting rods, fitted larger turbochargers with CNC-machined housings, new intercoolers, its own exhaust system and bespoke ECU calibration. Only then does the M5 CS leap from the “fast business sedan” category into the league where cars are seriously compared to supercars.
The numbers speak for themselves: an extra 265 horses on top of factory output and a top speed comfortably north of 200 mph. G-Power doesn't publish a fresh 0–100 figure, but with xDrive all-wheel drive and that kind of torque, the Hurricane RR has to outrun the stock car at virtually every point on the speedometer. No room for doubt there.
The bodywork doesn't pretend to be subtle either. A carbon-fibre bonnet with cooling vents, an aggressive rear wing, fresh wheels and G-Power emblems where the factory badges used to live. This is no longer the “wolf in sheep's clothing”. It's the wolf that stopped hiding.
The price of a package like this is comparable to a decent new sports sedan one class down — common sense isn't really on the menu. But the M5 CS offers something most cars don't: a lightened body, four individual bucket seats, a snarling V8 and the status of the most hardcore F90 ever made. G-Power simply pushed that formula to its logical limit.
A sedan like this isn't bought for the school run. It has a different mission — to prove that a big four-door BMW can still terrify with raw numbers, even in an era where everyone wants to talk about nothing but electric cars.
