In 1966 Shelby American produced 2,378 GT 350s. Of those, 100 were made exclusively for Hertz Rent-A-Car with Le Mans stripes. The only difference between the rental cars and production cars was the beefed-up three-speed transmissions in the former.
The cars were shipped to major cities and rented. There were many stories - some true - that these cars were rented for the weekend, raced on the track and returned on Monday morning - they were known as 'Rent-a-Racers.'
Among the special features built into the cars were high rise intake manifold, headers, functioning cooling ducts, solid high lifter revving engine, finned aluminum oil pan, oversize rear brakes, shocks and sway bars.