The Shelby Mustang was a tunersports car from the 1960s. It was a series of Ford Mustangs which were specially modified by Carroll Shelby's company and sold as a series. The program was factory-sponsored and production was eventually moved in-house. The spirit of the series continues today in the special Mustang Cobra models.
The first Shelby version of the Mustang appeared in 1965. All '65 Shelbys were painted white with parallel blue stripes from nose to tail. They also featured rocker panel stripes with the GT350 name. The engine was a modified K-code289 hp (216 kW) WindsorV8 with special "Cobra" valve covers, tri-Y headers, a special intake manifold and Holleycarburetor increased power from 217 to 306 hp (162 to 228 kW).
1966
The 1966 was differentiated in body color (non-white versions were introduced) and trim. It featured special quarter-panel windows and rear air scoops on each side. A fold-down rear seat was now standard as well. Dual AFB Carter carburetors were available as an option, and the 289 engine was painted blue.
Shelby struck a deal with the Hertzcar rental company to produce a special line of GT350s for rent. These GT350H cars are quite rare and sought-after today. Shelby would repeat this trick in 1987 with the Shelby CSX-T.
1967
The new 1967 Mustang was followed with a new Shelby. It featured Mercury Cougar tail light panel, a flip-up spoiler, and two sets of air scoops on each side. This was also the first American car to feature a factory roll bar.
This year also saw the introduction of the GT500 alongside the continued GT350. The new GT500 featured a 428 in³ (7 L) FE Police Interceptor big-block V8.
Those cars, slightly modified versions of the ShelbyGT350 available for purchase at Ford dealerships, were available to members of the Hertz Sports Car Club and could be rented at selected Hertz airport locations around the country.
Shelby produced 1,000 of the cars, most with automatic transmissions and fl-and-gold paint schemes, but the program lasted for only one year, said Matt Stone, executive editor of Motor Trend Classic magazine.
Hertz will not be renting out the Shelby GT500 which goes on sale this summer with a 475-horsepower engine.