Brabus has just unveiled a new 730hp ” SV12 S Biturbo Roadster” — based on the Mercedes SL 600. It rockets from 0-60 in just 4.0-seconds and boasts a top speed of 219mph. Pricing has not yet been announced.

The displacement of the twelve-cylinder three-valve engine is increased from 5.5 to 6.3 liters with the help of a billet steel crankshaft, larger cylinder bore, special pistons and piston rods. The conversion also includes re-machining the cylinder heads and fitting them with special camshafts

[via LeftLaneNews]