Roush Performance has just released a new Mustang that will wow any kind of muscle car enthusiast. How does 510 horsepower sound? Only 51 models will be produced, very limited indeed! I can't imagine how hard it will be to get your hands on a special car like this. The stang will come with a 5-speed manual transmission and Vapor Silver paint. The MRSP is said to be somewhere around $61k, that's not cheap! But with only 51 of these Mustangs being made, it might be a very good investment. I would be amazed if I ever got to see one of these on the road.