I don't think it does really.
For reasons the assists it had in the game that weren't actually used in Drift:
Braking assistance: no point, you need speed to drift and to get points and big ones too.
ABS: you need a bit of lock up for you to lose the traction in the first place.
TC (Traction Control): again you need to lose traction.
Stability control: would interfere with the drift.
Status = Part Time. [b][color=red][size=12]I am the car expert! So I've been told. lol[/b]
Check it out