drifting as a 'sport' comes from japan which means there is loads of tat off the shelf to totally feck up the handling of your car and ruin the engine dynamics....
bmw's are really popular amongst beginners as they're like jap cars are 2 the japs
10 a penny
cheap parts, rwd, almost equal 50/50 weight balance and not to mention german and jap cars are the only ones that can be revved to the moon and back without the car crumbling to peices