The brainchild of a young Ford executive named Lee Iacocca in the early 1960s, the Ford Mustang was conceived as a compact car with style and flair. Small, sporty and offered with V8 power, the Mustang blazed a trail for a new type of automobile, the pony car. The Mustang debuted at the World's Fair in New York fifty years ago, on April 17, 1964. The design was an instant hit with the public, making Mustang one of the most successful product launches of all time. Over the years, Ford's iconic thoroughbred has remained a uniquely American car that continues to offer power and panache. Let's look at some favorites through the years.