I've only had my car for a week and this happened to me a few days ago, on the way home from work. I was stopped at a light on a road with a 45mph speed limit, and a honkin' big Cadillac SUV pulled up next to me. The road went into an S-curve immediately after the light, and when the light changed I could tell that the Caddy was trying to smoke me. Even though I'm still in the break-in period I couldn't resist taking him on through the turns, and I think it pissed him off that I easily kept up because when we hit a straight he floored it and of course took off. I don't "race" when it means exceeding the speed limit by more than 10mph, so I just laughed at him and let him go.