RWD Drifting.
http://www.youtube.com/watch?v=KZR_tdtUMKw
Also, by your definition, CS drifting isnt real drifting either then. Its all semantics really. To me, if your not driving straight, your drifting. Powerslides are just a different type of drifting, and therye exactly that, a power slide. If you want to be technical, my driving style is nothing but a string of well timed, very accurate power slides, as i use power and speed to maintain my angles. You cant say its not drifting because its not done a specific way. Thats like saying somethings not rally because the course is only street. The fact that he's controlling it with his front end should mean squat, but rather the fact that he's accurately maintaining a sideways angle through sweeps and around turns.