Superb! Can't wait to have one of those. Well, American car manufacturers have been making modern versions of classic cars for a while and are now starting an arms race for horsepower. Ford is unleashing the 2013 Shelby GT Mustang soon, and the 650-horsepower monster will do 200 miles an hour. I guess all 2013 Ford Mustangs are getting a style update, including feeble adjustments to the splitter and air intake vents close to the front bumper and a glossy back panel and all models will get high-intensity headlamps as well.proof is here: Horsepower arms race is on with 2013 Ford Shelby GT Mustang.