Audi of America, Inc. recently announced its entire 2008 model line-up. New for 2008 are the TT Coupe and Roadster, the R8 mid-engine sports car, the limited-production RS 4 Cabriolet and the A5 and S5 coupes. The carmaker has established option packages for the current line-up to ease customer ordering, as well as a standard tire pressure monitoring system in every model. Click here to view the full article.