What was the most popular Ford Mustang in 1966?
What was the most popular Ford Mustang in 1966? Ford sold over 600,000 of these, making it nearly twice as popular as it's competitor that year, the Chevy Impala. In fact, it was the best selling Mustang of all time! The 1966 Mustang Fastback wasn't nearly as popular as the coupe. What was under the hood of a 1966 Mustang? Under the hood, Shelby added overall horsepower to the already powerful 289 in part by adding aluminum Cobra valve covers and a chrome air cleaner. The 1966 Mustang Shelby is where racing and the everyday American driver came together to...