German tuners Vath find an AMG underpowered

Mercedes-Benz launched a Black Series version of its already mental C 63 AMG Coupe last summer. It features a more rigid chassis and a tweaked powertrain that produces 510bhp from the 6.2-litre V8 from the 'stock' AMG's 451bhp. 

German aftermarket tuners, Vath are still not impressed and have developed a new performance package called the V63 Supercharged. Vath's power kit uses a proprietary water-charging air cooling system, an ECU remap and custom exhaust system to bump the output to 746bhp and 800Nm of peak torque. 

The Ferrari F12 Berlinetta has a 6.3-litres V12 that produces around 730bhp and 690Nm of torque, though it is naturally aspirated. The engine modification costs €38,500 (S$47,900) and allows the AMG Black coupe to hit 350km/h with a century sprint of just 3.6 seconds.

For an additional fee, Vaith also provides suspensions with 20–65 mm lowering and hardness, adjustable shock absorbers, better 405mm brake discs, and new 20-inch alloy wheels wrapped in 255/30-20 tyres on the front and 295/25-20 tires on the rear axle. Cosmetics wise, you get a dark grille sans the star, a sports steering wheel in leather with either carbon or wood trim, and a 400km/h speedometer.