In 1965 the Ford Mustang debuted as a simple sports car powered by a 170 cid six cylinder with a pair of V8's as options. Originally named for the fighter plane, the P-51 Mustang and later the horse Mustang became the emblem. Buyers loved its low price, long hood, short trunk styling, and its many options and Ford loved its high volume sales. In mid 1964, Ford introduced the sporty 2+2 fastback body style to go along with the hardtop coupe and convertible. Enthusiasts also cheered the new "K-code" 271bhp 289 cid V8 that finally put some performance to match the Mustang's good looks. For those that wanted more, the legendary Carroll Shelby and Ford collaborated to produce the Shelby GT-350. This was a fastback specially tuned by Shelby. The 289 V8 produced 306bhp in street tune and around 360bhp in special GT-350R race tune. These Shelby's had no back seat, were only available in white and were fully race ready.