The Thunder Dome Car Museum in Enumclaw, Washington had some pace cars and race cars on display.
World of Speed: Some Open-Wheel Racers (Photo Diary)
World of Speed: Drag Racers (Photo Diary)
World of Speed: Porsche 911 Race Cars (Photo Diary)
World of Speed: NASCAR
Museums 101: Porsche racing automobiles (photo diary)
Museums 101: NASCAR (Photo Diary)
British Transportation Museum: A collection of Triumph automobiles (photo diary)
Packard Museum: Concept cars of the 1950s (photo diary)