Whats causing spin out?

[Where's my car?]

So After spinning out at the 2008 speed festival, i've been trying to figure out every cause to my spinning out. JUst wondering if anyone has knowledge of the cause. Im wonder if it is:

1.I turn the wheel to hard/far
2. Traction control is on ( watch a video of a guy driving, car infront of him spun out, and he said "Prob had his tranction control on) i don't know..
3. Tire tread was horrible
4. car just oversteers
5. debris on floor

Any ideas??