Sebastian Vettel has laughed off accusations Red Bull is using traction control, saying his rivals will never figure out why his car is as fast as it is this year.

Following his dominance at the Singapore Grand Prix, ex-F1 boss Giancarlo Minardi speculated on his blog that Red Bull was running some form of traction control on the RB9 to allow Vettel to get on the power earlier – an accusation the Red Bull driver was quick to laugh off click here for more