In celebration of the Fourth of July, Roush Performance released some figures about just where the parts for their 2010 Roush Mustang come from. The Mustang isn’t entirely American made, but it does clock in at 86%, which, if you consider the growing trend towards globalization in the past few decades, is an incredibly high number. And, that 86% includes all of the stock Ford Mustang parts and the modifications made by Roush.
