Ok, I have searched and read thread after thread and still confused. Here's the situation: I have aftermarket 22" rims on my 01 X5 and thinking about buying a set of 18" or 20" of the same style rim. I like this style and want to have the staggered look. I will keep the 22 in the rear and the 18 or 20 in the front. Is this a good ideal or no?