Huh. So I assume this is what we're going to be seeing at Detroit, correct?
I think this is one that is going to take some time to grow on me. There are a lot of very neat aspects of the exterior, but there are a few things bugging me - it just looks a bit too...busy. Overall, very nice design language, but things like the headlamps look convoluted and the grill changes look a bit overwrought. The profile is very nice and masculine, but the back end needs a bit more work.
All that criticism being said, I think this gives us some great cues as to what we're going to see with forthcoming Sportback models, the A7, the A8 and the A1. It'll be interesting to see how Audi blends these design cues into production models. My only request would be to clean things up a bit more, but other than that, great looking work!