Bugatti's awesome Veyron isn't the world's fastest production car - not according to the Guinness Book of Records, at least.
The supercar's 253mph top speed has never been verified by the organisation, but Bugatti plans to settle the matter next month at owner VW's Ehra-Lessien track in Germany. Current Guinness champ is Sweden's 245mph Koenigsegg CCR.
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