Just FWIW, I pulled up detail photos of the wheels on the Ghia Sport 5000 (which was built from the original Shelby/De Tomaso 70P, and whose chassis and suspension were used for the Mangusta). The wheels it wears measure 8 1/2 x 15 front and 11 x 15 rear...I was surprised as I always thought they were 8 x 15 and 10 x 15, but the markings are quite clearly stamped. I never realized that any Campagnolo wheels were cast in half-inch increments either.
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