Mercedes-Benz is no stranger to wickedly powerful and insanely fast luxury sedans. After all, its AMG models are among the fastest and most powerful on the market. Leave it to specialty Benz tuner Brabus, then, to take it the extra mile… and then some.The freshly unveiled Brabus SV12 R Biturbo 800 claims the mantle as both the fastest and most powerful sedan on offer. To get there, the German
