Think of the Galpin Rocket as a 725-horsepower, street-legal Batmobile, based on the 2015 Ford Mustang. It was co-designed by Galpin and Henrik Fisker, and is touted as the ‘ultimate American muscle car.’ Powering this beast is a supercharged 5.0-liter V-8 engine. On the outside, there are quite a few body modifications, including carbon fiber body panels. No word yet on pricing or availability. Continue reading for more pictures.