the fastest production car in the world is the scc ultimate aero made by shelby supercars. that is the technical answer to you question. The Guinness world record speed was On September 14th The Ultimate Aero TT under the astute eyes of the Guinness Book of World Records finally made its speed run on a closed section of Washington State Highway. The recorded time as averaged from the two passes turned out to be 255.83 mph. Thus beating the Bugatti Veyron’s recorded time by just under 3 mph.
here is picture of the car.
I guess its Either the Bugatti Veyron 16.4 or the Saleen S7 Twin Turbo...Has to be one of these...Speeds in Excess of 415kmph...What else does one need? ;-)
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