Back in the day I had a Smart Roadster, everyone and their dog wanted to race me from the lights, I just used to let them go, their manhood did not get any bigger by doing it.
I have a hot hatch megane now (225), and I expected everyone to be trying to race that as well, but no, people just leave alone, its great. Its obviously faster than most boy racers cars so they don't want a race that they could not win. I still go just as slow, but I don't get so many oiks reving their engines next to me at lights.