Well if anybody watched the video of the the CCR record breaking run, it topped out at 388kph/241.1mph. So I would say that until it has had an offical run that tops out over 409.9kph/254.7mph, it hasn't beaten the sledge but, the 88' Vette isn't a production car (just the fastest tested street car). The Mclaren's official record is 386.3kph/240.1mph. So it nudged the F1 out by less than 2kph!
