The BMW M5’s reputation has always been that of a saloon car that could kill supercars without breaking a sweat. But even with the weapons-grade powerplant under its hood, some guys at the product-planning division probably thought that the car needed more horsepower. So, after some revision, the M5 gets a little wilder in the form of the CS.

The 4.4-liter V8 engine is still the same one used across the entire M5 range, but the CS puts out a bonkers 635hp, making it BMW’s fastest production M car in its entire history. It can do 0-100km/h in just three seconds, and 0-200km/h in 10.3 seconds, which is mad for a car of this size. Only God knows the CS’s true top speed, because Vmax is electronically restricted to 305km/h.

Power is sent to all four wheels thanks to an all-wheel drive system with torque vectoring. You can even tell the powertrain to send all of the drive to the rear axle for a bit of sideways action.

Aside from the horsepower boost, the M5 CS gets goodies that make it handle better. Thanks to the extensive use of carbon fiber, it is 70kg lighter than the M5 Competition. Stiffer springs and shocks dramatically improve cornering manners. The 20-inch alloy wheels are wrapped in seriously grippy Pirelli P Zero Corsa rubber.

The CS also gets some new exterior bits to distinguish it from lesser M5s. Probably the most eye-catching are the new golden-bronze highlights adorning the grille and the wheels (you can even order the brake calipers to match), and the yellow DRL strips are a nice throwback to the GT3-class race cars. Tons of carbon-fiber bits and a redesigned hood all scream “Power!” just like a certain British TV presenter.

The interior gets the CS treatment, too. There are four bucket seats just in case the kids want to come along for a hot lap on the racetrack. Just to remind you of the car’s purpose, several CS and Nurburgring badges are scattered within the cabin that’s trimmed in Alcantara. Illuminated M5 logos in the front seat should be a great talking point among your Audi RS- and Mercedes AMG-driving mates.

The M5 CS will be launched sometime this year. In this day and age when SUVs rule, it’s nice to see companies like BMW still tinkering with the sedan. But with prices starting at €180,400 (P10,545,000) in Germany, we can only hope that keen consumers deem the car worthy of its price tag instead of another crossover.