text: As a promotional move, Ford leveraged its role as the major shareholder of Hertz to persuade the rental car giant to purchase 1,003 fastbacks, including two prototypes. Four "experimental" GT350 convertibles were also built for test purposes in anticipation of a 1967-1/2 convertible offering. A small number of the consumer sales 1966 models were factor fitted with Paxton superchargers, but not the No-Spin limited slip differential, for an additional $670, (~$ in ) the engine was rated at . Total production for 1966 was 2,378 units, including two prototypes and four drag cars, with 1,372 sold to the general public.
  1966 Hertz Shelby GT350
  The sales arrangement with Hertz for ~1,000 GT350s to be added to its rental fleet included the proviso that after their rental lives were finished the cars would be returned to Ford, refurbished, and sold to the public as "GT350H" models. Most Hertz cars were black with gold LeMans stripes and rocker panel stripes, although a few were white with blue stripes. The first 85 Hertz cars were available with four-speed manual transmissions and Hertz advertised them as "Rent-a-Racer" cars. During rental, these cars were sometimes used as production class cars at SCCA events, and were rumored to have been returned to Hertz with evidence of roll bars being welded in.
  Ford pushed another 800 models on Hertz with black paint, gold stripes and black interior, as well as automatic transmissions.
  When the Hertz cars were returned to Ford to be prepared for sale to the public, high-performance racing parts were often "lost" (presumably at the manufacturer) before final sale.
  1967-1968 Shelby GT350 / GT500