2011 Shelby Supercars Ultimate Aero II
Featuring a 6.8 liter twin-turbocharged V8 that redlines at 9,000 rpm and spits out a jaw-dropping 1,350 horses, the 2011 Shelby Supercars Ultimate Aero II has its sights set on taking back the street-legal speed crown currently held by the Bugatti Veryron Supersport
Shelby SuperCars (SSC) announced that theirUltimate Aero topped 257.1 mph (413.76 km/h) in the first run.
