In 1967, Ford built only 11 GT500's, so when we're talking rare, these are about as rare as they come. This Mustang was built in the Shelby California plant, still with its original 7.0L V8. In its 48 years of life, it's only clocked up 52,000 miles.
This particular model was up for sale just recently, and sold for $177,000 AUD. Bargain!