Those of us fortunate to have witnessed the original Trans-Am road racing series will feel a tinge of nostalgia with the Mustang GT-R concept. Ford refers to it as a potential future race car, honoring four decades of performance glory just days before Mustang’s 40th anniversary. The Mustang GT-R features Ford Racing’s 440-horsepower "Cammer" crate engine, which can be tuned to produce more than 500 horsepower. It can be adapted to conform to different series but, in this variation, serves only as a dream machine. The company says the GT-R "shows that Ford is back in road racing in a serious way." Let's hope so.