not really skill lah.. mostly, i learnt the racing technique at pasir gudang only... so, i'll know the best line to take at every corners there...
my instructor said, if you want to learn the heel and toe technique, practise like Jackie Chan. No joke, really need to practise like that. What you do is, when your car is stationary and the ignition is off, practise the hell and toe techniques... get used to it and you'l do just fine on the track.
After that, is the art to throwing your cars into corners.... and that, is something amazing... but b4 you do that, you have to leave your balls at home. hahhaa....