I Want An Audi RS6 Avant But I Have A $30,000 Budget. What Car Should I Buy? Photo: Robert Perez II - Cali Photography (In-House Art) Gus, like many of us, is thrilled that the Audi RS6 superwagon is now being sold in America. He would like to buy one, but also like many of us, he is coming up short on the budget by about $100,000. So he is looking for the fastest wagon available for “reasonable” money. What car should he buy? Advertisement Here is the scenario - Now that the RS6 Avant is finally available in the USA - I want one. But I’ve only got $30k to spend. Help me find the fastest breadvan possible. This car needs to fit a fair bit of crap at times. I want something quick, spacious, at least a tiny little bit reliable...but the last one is negotiable.