I personally find it difficult even to powerslide the Z4 because of the instant torque and the fact that you sit right up the rear axle, I struggle to sense progressiveness and feedback. Plus once it starts oversteering I need to balance the throttle inputs sooner due to the turbo lag, it just doesn't make much sense to me.
This on the other hand is how drift should end. Taken from a racetrack 2 weeks ago :