From 1965 through 1968, Carroll Shelby’s crew reworked Ford Mustangs to produce the legendary Shelby GT-350 and GT-500. Production of the Shelby-tweaked Mustangs transferred to Ford for 1969, and the aggressive styling was wilder than ever. But performance was no better than a cheaper Mustang, and at the end of ’69 nearly 800 cars remained unsold. To create the 1970 Shelby GTs, the leftover ’69s were given new serial numbers under FBI supervision, a pair of black racing stripes were added to the hood, and a chin spoiler was bolted under the front bumper. A total of 789 cars were converted, and they marked the end of the original Shelby Mustang era.