Oh do we have a treat for any of you lovers of 'merican muscle cars today. We were talking with a Ford insider recently about the 2010 Ford Mustang. Specifically, discussion focused on the partially speculative rendering of the 2010 Mustang GT on the front of Car und Driver this month. More than one person had already told us a number of differences between the production model and the one featured on the cover of the big buff book, and our new source claimed the same thing. The difference between our other sources and this one was this one was willing to show us the money as it were. The shot below the jump is a sketch based on the final design of the next Mustang. We've mapped the differences out as well.