See results for 2009 Euro's here on oople:
2WD all top 10 cars were either B4's or X6's (B4 conversion) with B4 winning.
4WD in top 10 there were 4 B44's with one comming 2nd, mor than any other manufacturer.
Parts cheap as hell and very easy to get
If you get either B4 or B44 get the factory team version.
Final reason to get an Associated: I can copy your setups