Of the three mentioned, all except for the last are presently on the market in the US. It will be interesting to see what we, and the auto magazines think of these 4 in comparison to each other. The only unknown to our shores is the new A4. I am not a big fan of the old A4, but the new one will attract buyers that did not give the old one the time of day. I have the brochure of the UK edition which will look identical to our version. I am still unsure about the exterior with all the A6 cues, but the interior is very impressive. Each car has tons to offer, I can't wait to see how the industry views this segment when all the players are up to date with new releases.