When Ford unveiled the Mustang at the April 1964 World’s Fair, it optimistically planned on selling 1000,000 units in the first year. But buyers stampeded to dealerships, driving 22,000 Mustangs off the lot on the first day it was available, according to Motor Trend. That inaugural Mustang became known as the ‘1964 1/2’ model because of the Spring release date and came with one of three engines. The base motor was a 170-cu-in I6 that Car and Driver called ‘about as
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