Audi RS6 Evotech (720 hp) vs Mercedes-Benz CLK63 AMG Black Series (507 hp) .brAudi RS6 Evotech (720 hp) vs Mercedes-Benz CLS55 AMG VR650 (650 hp) .brAlpina B6S (530 hp) vs Mercedes-Benz CLK63 AMG Black Series (507 hp) .brMoscow Unlim 500+ Dragtimes.info: Audi RS6 Evotech vs Mercedes-Benz CL65 AMG Evotech .brMercedes-Benz SL 65 AMG Evotech-Fab Design(730 hp) vs. Audi RS6 Evotech (750 hp) 1 mile race.