I just want to get my money to the right dealer :). RWD or AWD doesn't matter to me. rwd would be nice for better MPG, but the AWD audi gets almost as good MPG.

I'm mostly interested in the diesel engines. I guess it isn't fair to compare the two until final pricing is out. I can see the 3.0 tdi a4 costing a bit more than the bmw, so it might be better to compare the a4 2.7tdi to the 120d.