Two months after checking out the A5 DTM racer concept , Audi has whipped out the production model at the 2011 Frankfurt Motor Show . Internally named " R17 ," the Audi Sport Cars Concept …
While yesterday was Ferrari's turn to present his car, McLaren did today. The team presented the MP4-25 , the model that will run Lewis Hamilton and Jenson Button in the Formula 1 season st…