Very rare! Started out as a Ford Fairlane at a Detroit Ford assembly plant and had help from Dearborn Steel Tubing. Anyone with $3,780 ($200 more for automatic) could walk into a Ford dealer and order a Thunderbolt. Still, just one was assembled in 1963, 100 were built in '64, and two were built in '65. Although street legal, these were real race cars, and few went to battle on the public highways.