A 2015 Ford Mustang GT prototype was caught again on camera recently, as it was doing some testing runs on public roads. Unfortunately, this 2015 Mustang GT is still completely covered in camouflage. The information on the future Mustang GT (2015) is scarce at the moment. However, we did manage to find out that it will be sold with a 5.0-liter V8 engine that will deliver around 450 hp. Ford is also planning to offer the future generation Mustang with a smaller 2.3-liter 4-cylinder turbocharged engine, good for 360 hp.