The Shelby Supercars Ultimate Aero Twin Turbo set the new World’s Fastest Production Car record with an average top speed of 255.83 mph.
On a temporarily-closed 2 lane public highway in Washington State, the SSC Ultimate Aero posted a top speed of 257.11 mph (413.83 kph) on its first pass and 254.55 mph (409.71 kph) on its return pass, achieving a new top speed record: a staggering 255.83 mph (411.76 kph).
SSC used a turbo V8 outputting 1183 HP and 1094 lbs. of torque. The use of lightweight carbon fiber materials allows for a low dry weight of 2750 lbs. giving the Aero TT the production record for lbs/hp ratio at 2.33.
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