I remember the excitement that came over me as a child every time I saw an exotic car on the road. In fact, I still go pretty crazy when I see a unique car pass me on the highway or parked in a valet at a restaurant. There is a popular internet activity called car spotting. People drive around and take pictures of the exotic cars that they see and post pictures on the internet. There is a web site called www.ChasingExotics.com that does a great job of documenting this trend.
They have a thread dedicated to car spotting in the Atlanta area and it is one of most active areas of their site. It may burn through your next hour or two but it is definitely worth looking through. Here is the thread.