in California, Bruce Canepa has an interesting collection of 917 race cars that would be worth seeing.
His sole purpose in running his businesses is to run, maintain, and collect porsche 917's of all types... interesting fellow; and ask him how a McLaren F1 handles
http://www.canepa.com/about/tour.html
he has one of 3 "true/orginal" EB110 SS's as well (and for sale)