One of the stars of this year's Paris Auto Show was the Audi Quattro Concept. It's cool in pictures, but when you see this car in person...wow. The proportions are perfect and it just looks like trouble. Unfortunately, the decision to build the Quattro concept has been pushed until this September. Quattro GmbH boss Stephan Reil is optimistic about the project which he said would be best as a limited volume (500 - 1,000) light weight (3,086 lbs) exotic intended to show off the lightweight technologies possessed by Audi.