Brabus-tuned Mercedes-Benz S63 AMG Cabrio revealed with 838 hp
At the Le Mans 24-hour endurance race, Brabus debuted the 850 6.0 Biturbo S63 Cabrio. With some impressive firepower beneath the hood and with an all-black baleful look to brag, the S63 Cabrio is now the world’s most powerful and the quickest 4-seater convertible.