The regular Mercedes-AMG GT63 4-Door already produces 630 horsepower and 664 lb-ft of torque, but this particular example has been significantly modified to achieve its impressive performance. Turbo Technic Hamburg supplied a pair of uprated turbochargers while Spool Performance provided upgrades for both the low-pressure and high-pressure fuel pumps. A Blackboost air intake helps the car inhale better, while catless Red Star Exhaust downpipes and a custom titanium exhaust system help that V8 exhale more freely. A methanol injection kit keeps temperatures and octane levels in check, and all of this is brought together with a comprehensive retuning regimen that results in around 1,000 horses being transmitted to the wheels.
The car's exterior has also been modified to match the hopped-up nature of the engine bay. A custom, vented carbon fiber hood with numerous vents is balanced by an unusual rear wing, and most of the badging has been blacked out. Some yellow accents have also been added to match the color of the calipers, but the biggest change is the color of the car itself. The body has been painted in what at first appears to be some sort of variation of Nardo Grey, but it's actually a sky-colored hue called Meissen Blue.
Despite the extensive modifications made to the car, the wheels, brakes, and suspension appear unchanged, as does the cabin. The owner uses the car regularly, which is evidenced by signs of wear on the vehicle.
V8-powered cars like this may soon become scarce as Mercedes downsizes more cars, making it all the more enjoyable to see such monstrous examples while they're still around.
Source: Carbuzz