If this 900 HP Mercedes-Benz S63 AMG Coupe by Mansory doesn't get your heart racing and your teeth aching, you may need to check your pulse. More widely known for their insane body kits, Mansory decided to play things differently with this MB, opting for a subtle style mixed with outrageous power under the hood. Most of the work was done to the 5.5-liter twin-turbo V8 engine, upgrading power output from 585 HP to 900 HP with an electronically-capped torque of 960 lb-ft. Combined, these stats now allow the Mercedes-Benz S63 AMG Coupe to accelerate to 62mph in just 3.3 seconds before topping out at the limited 186-mph. Visually, Mansory kept things refined with carbon fiber tweaks to the front apron, bootlid lip spoiler, and side sills along with fresh alloy wheels and a revised cabin. Finished with new quad exhaust pipes and flared wheel arches and we're left with a fine presentation from the German shop. See plenty more angles of their latest project after the click.