Because 630 horsepower isn't enough power for some people.
The Mercedes-AMG GT 63 S is already one of the fastest sedans on the planet, but this hasn't stopped German tuner Posaidon from taking it to a new extreme. The aftermarket tuner recently created the most powerful AMG GT R ever with up to 880 hp on tap, and now you can achieve the same level of power in the AMG GT 63 S 4-Door Coupe.
In stock form, the AMG GT 63 S is powered by a 4.0-liter twin-turbo V8 that delivers 630 horsepower and 664 lb-ft of torque, making it the most powerful Mercedes-AMG on the market. Posaidon clearly thinks there's room for improvement, however, and is offering two tuning kits that make the powerful sedan even more potent.
As the name implies, the "entry-level" RS 830 kit increases the output to 830 hp and 811 lb-ft of torque, which is sent to all four wheels. This was achieved by upgrading the turbochargers, installing a larger air-cooling system, adding sports air filters and downpipes with sports catalytic converters, and customizing the engine and transmission control unit software.
The aftermarket tuner has also lowered the chassis with an electronic module, which lowers the sedan's center of gravity and improves the driving dynamics while also giving it a sportier appearance.
This package costs just under 24,000 Euros (around $26,400). With these upgrades installed, the AMG GT 63 S will rocket from 0-62 mph in just 2.9 seconds, which rivals some supercars. For comparison, the standard AMG GT 63 S will achieve the same sprint in 3.2 seconds and hit a top speed of 196 mph, so it's an impressive improvement.
If that somehow still isn't enough power for you, Posaidon is also offering a more powerful RS 830 + package that gives the AMG GT 63 S an insane 880 hp and 885 lb-ft of torque on tap.