THE 2005 MUSTANG GT WAS ALL NEW LIKE THE REST OF THE MUSTANG RANGE. THE MUSTANG GT CAME IN TWO OPTION PACKAGES: THE DELUXE AND THE PREMIUM. MUSCULAR NEW ENGINES GAVE THE MUSTANG STRONGER PERFORMANCE. THE 4.6 LITER ALL-ALUMINUM V8 HAD THREE-VALVE HEADS. THIS GT IS A 5 SPEED AND HAS ONLY 19000 MILES.