So what's next?

You could always do something like this for now: http://www.autotrader.com/fyc/vdp.jsp?car_id=219761904&dealer_id=59824531&car_year=2005&model=S4&num_records=25&make2=&start_year=2004&keywordsfyc=&keywordsrep=&engine=&certified=&body_code=0&fuel=&search_type=both&distance=300&color2=&make=AUDI&color=WHITE&min_price=&drive=&default_sort=priceDESC&max_mileage=&style_flag=1&sort_type=priceDESC&address=14226&advanced=y&end_year=2006&doors=&transmission=Manual&max_price=40000&cardist=292

white/black
luxury
in your price range
good on track, as a daily, and awd for the winter
has balance of audi free 4/50k maintenance (not sure if it’s as extensive as BMW)