again everyone just about has it..... list off oversteer is the best way to go, and most controllable. The 172 cup certainly is a breeze to control under these conditions. Steer in sharply, tap brake hard, straight onto throttle, steet against slide, feather touch on brake and throttle accordingly (preferably with left foot braking) Can slide for a very long time if you master it. The look on other drivers faces is always the funniest part.
... the only other option is run your rear tyres till they are near the fail mark.
This is always fun... especially when you are not expecting it.