As someone mentioned, read the Sticky (The thing that says "Read before posting!") about the frequently asked questions. Also as someone mentioned, it is because of lack of pratice. The more you practice, the more you can pull off. Take me for example. A week ago I couldnt spin drift. Now, after practicing for a few days, I can spin drift almost any corner, and do it consistly. You also might want to try getting stickier tires, maybe lowering your horsepowers, and of course, practice. And welcome to GTP, enjoy your stay.