2. Ford Mustang 289 HiPo
Although the Mustang looked sporty and cool, it shared modest underpinnings with the economy Falcon. Its engine lineup included mild versions of inline-six and small V8 units. The power output was nothing special and the performance was somewhat below the expectations. Ford responded with an interesting engine they called the K-Code.
The K-Code was the 289 V8 but with the milder, more street-friendly tune and 271 HP, which was more than enough for the decent performance Mustang fans asked for. Introduced in 1965 and available until 1967, the 289 HiPo was the first Mustang that ran as well as it looked, especially if you ordered it in gorgeous Fastback body style.