The Starfire SX was the upgraded D07 model Starfire with a few extra standard features not found on the standard T07 Starfire model.  The SX was not (as previously thought) an extra decor or special edition package.  The SX features included standard features such as bright wheel-opening moldings, SX name script emblem on the front fenders, custom sport steering wheel, woodgrain vinyl trim and contoured high-back bucket seats.