+1 also for Spinnaker.
When I am at stoplights in traffic, I have a new habit of deliberately going slow, certainly no faster than surrounding traffic. That makes it obvious to the idiots who want to race that I am not racing and not using my car's abilities, and hence they have no idea how fast my car is or whether I have a base 2.5 or a turbocharged 3.2. I am driving the Porsche to enjoy the ride, not to show off or put down other people. Now, my driving style on a deserted country road by myself or as part of a PCA fun run may be an entirely different matter.