Drifting is made up of three categorys: 50/50, CS and RWD.
50/50 is the most begginer level of drifting, anyone can do it (not saying that anyone cant drift a CS or RWD car), a 50/50 drift car is basicly a touring car such as a Ex. Tamiya TT01 or TT02 that has hard plastic drift tires, a 50/50 car sends 50% of the motor power to the front wheels and 50% to the rear wheels.
CS is is a big step up from 50/50 drifting, its harder but anyone can master it with practice. A CS drift car are usually a purpose made chassis for drifting. While 50/50 sends the equal amount of power to the front and rear wheels a CS car sends more power to the rear, either by overgearing the front differential (making the front ratio higher then the rear ratio) or undergearing the rear differential (making the rear ratio lower than the frotn ratio). This makes the rear end of a CS car more tail happy than a 50/50 car and in the procces making it harder to master.
RWD is the most realistic one of the three. It works on the same principle as a 1:1 size drift car. All the power is sent to the rear wheels and making it tail happy as **** (insert finish meme here). To accomodate for this tail happyness the front wheels has massive steering angle like you would see on a 1:1 drift car too.
Then there is the choice of shaft driven or belt driven. Most 50/50 cars are shaft driven while CS cars are belt driven, that eliminates torque steer (http://asiate.es/read?l=8Y8KWM_VEWM guide to understand torque steer). RWD has the choice of both front mounted engine with shaft or belt drive and also direct drive where the motor drives the rear differential directly.