Audi R8 – Preview: The all-new 2008 Audi R8 is a mid-engine two-seater sports coupe poised to compete with the Aston Martin Vantage, BMW M6 and Porsche 911. Based in platform on the Lamborghini Gallardo, this super sport Audi employs a lightweight aluminum space frame. However, the R8 forgoes the Lambo's V10 engine in favor of a formidable 4.2-liter V8 engine developed in house. Three years ago, Audi delivered its Le Mans Quattro in concept form to the applause of journalists and potential customers. The production version, the new R8, will hit showrooms sometime in the first half of 2007 tagged as a 2008 model. Pricing has not been announced, but will likely ring up just over $100,000.