2007 Audi S6 Avant for sale in US for V-10 hauling needs

Audi never sold the third-generation S6 Avant in the U.S., which led some people to build their own. One of those S6 Avant clones is now up for sale on Cars & Bids. This wagon is a 2006 Audi A6 Avant with the powertrain from a 2008 Audi S6 sedan, according to the listing. Recall that both models were sold in the U.S. when new; we just didn’t…