Vapor 2008 Roush P51A Mustang coupe owned by LeRoy Hummel from Willingboro, New Jersey. It has a 4.6L Supercharged engine and a manual transmission. Leroy tells us, "I had previously owned a 2007 Blue 427R and was looking for a Mustang for a friend, and came across this 2008 P51a. The private dealer who I bought it from, obtained it from a friend who had passed, who also collected cars and had it in warehouse. I have owned for approx. 3 months now. It has only 7500 miles on it, and it is #19 of 151 produced ." There is no doubt that this Roush is rated at 510 horsepower.