The new 800-hp $40,000 model comes with a Tomahawk tuner included. Whipple will also warranty the entire powertrain for 3 years/36,000 miles for an additional $995. That's cheap peace-of-mind for an 800-horsepower monster such as this. If 800 horsepower isn't enough, the dealer will build you a 1,200-horsepower Mustang for just $11,000 more. But with great power comes great responsibility as the stock driveshaft can't cope with that much power to the wheels. Those buyers more at home on the drag strip may want to opt for the LFP 10
, another built Mustang GT that can lay down mid-10-second quarter miles. That costs a more dear $60,000 though.