This is a 2003 S55 Mercedes-Benz built by Hi Speed Motorsports. More than 600rwhp thanks to custom HSM long tube equal-length headers and midpipe, custom HSM Water/Meth kit using twin AEM kits. This car also has upgraded camshafts, throttle bodys, supercharger pullies and intercoolers, a Level-10 transmission and differential... the list goes on...