I was looking for directions near my house and did a Google Street View, and found that Google was doing the street view of Detroit's Woodward Avenue during the 2009 Dream Cruise. Unfortunately the cars around the Google car are not all that interesting, but some of the lots are full of interesting cars. Dream Cruise
This is probably old news to some, but it's a good way to see what the Dream Cruise is about without dealing with the godawful traffic.
