in truth there are many ways to start a drift like the e brake, in an fr car you can use it to start your drift and then proceed with tthe drift with out using it again, but in an ff you must constently use it to control your drift . there are other ways also like the shift lock, braking, feint, power over, and others. my fav is the feint.

http://www.driftsession.com/technique.htm