One of Germany’s most respected tuners is set to unveil a new Grand Touring supercar at the Geneva Auto Show in March. Based on a Mercedes SL (or SL65 AMG Black Series perhaps), the C25 supercar from Carlsson has a significantly redesigned body as well as some expectedly serious performance under the hood.

The 6.0-liter twin-turbo V12 engine has been tweaked to produce roughly 750-hp and 850 ft-lbs of torque. We also expect a curb weight that is much lighter than stock thanks to the use of carbon fiber body components.

More than just a brute performer, Carlsson claims the C25 will be daily drivable and can be serviced at your local Mercedes dealer. At a price of $700,000 Carlsson aims to make the C25 even more exclusive by only building 25 different models – one for each country that it distributes it, meaning that the owner will be the only one in his country with one.