Pulled in behind an Audi R8 yesterday on a 4-lane highway with occasional stoplights. Very nice looking car, and looks mean from behind. I followed him for a short distance when we got stopped at a light behind some other cars. When the light turned green we moved out with other traffic, but when we got to about 20 mph the other lane opened up and the Audi took the opening, so I tucked in behind him. He clearly saw me and slammed it, taking his car to red-line, so I followed suit. We were both surprised to discover that the 20 year old Benz stayed right on his bumper up to 80 mph when traffic forced us to break it off. I'd say my surprise was of a much more positive nature than his! I'm sure I wouldn't have been able to overtake, but he was clearly trying, and could not pull on me. Fortunately (for one or both of us), my exit came up before we had a chance to go again. I flashed my sparkly new euros at him as I drove off, a big smile on my face. I imagine his face would have revealed a different expression. Clearly, it must have been the V8 and not the Gallardo-powered V10, but my day was made.