6: Ford Mustang Shelby GT500

There’s really no other way to say this but, this is the quickest factory Mustang ever built! No expense has been spared in taking the stock Mustang–an awesome car on its own–and turning it up to 11. This car is comes in at $72,900 dollars with a monstrous 760 horsepower. When divided, that comes out an incredible $95 per horsepower!