Don Zucker purchased COB6123 at the AC factory as a leftover model. When Carroll Shelby used the new body style, he did not allow AC to call it a Cobra or use any Cobra badging. Powered by a 289 K-code motor with a single four-barrel carb, it is essentially the same engine used by Shelby in its small-block cars. When new, it was dyno-tuned and modified by Motion Performance and was featured in the August 1969 issue of Hi-Performance CARS. Photo by Martyn L. Schorr.