The only problem with the scoob as a trackday car is that a mildly modded one with an exhaust is going to be tripping noise meters all over the place! With Bedford getting more strict, that's got to be a consideration.
E36 is a great car though - can have some drifting fun with it, and they're cheap (non-EVO). Plus, if you ding a wing, it's nothing too much to worry about. Pluuuus, that chassis
With the E30, the whole LHD, scared of crashing it thing would worry me.....