torque, giving the Pinto platform a notable performance boost. Also available was a 4-speed manual. The Mach 1 remained mostly unchanged in 1976, as a new performance model – the Cobra II – was introduced alongside. 1977 proved to be the weakest sales year of the Mach 1 to date, selling only 6,719 units. The nameplate remained for one more year, upon when it was discontinued with the advent of the third generation Mustang in 1979. Fourth generation (2003–2004) During the 1990s, the preeminent performance Mustang was the SVT Cobra. Following the departure of the Fox chassis in 1993 and the arrival of the SN-95 in 1994, Ford also sought to eliminate the 302, which would not occur until the 1996 model. Drawing on its newly developed OHC architecture engines known as the Modular, SVT created the 1996 and up Cobra around several variations of the 32 valve, all-aluminum 4.6 liter (281 CID) V8. The 32-valve 4.6 L V8 used in the Mustang Mach 1 was originally introduced in the 1993 Lincoln Mark VIII, however, for the Mach 1, it was re-engineered with a free-flowing exhaust and intake manifold to increase the engine by 30 horsepower. Below the SVT in performance was only the GT, reintroduced in 1982 with the 302 HO "5.0", later turning to the 16-valve SOHC V-8 in 1996. The sales on the new SN-95 style cars increased, so that by 2002, Mustang sales topped the combined sales figure of the Firebird and the Camaro. With GM's withdrawal from the "Pony Car wars" in 2002, Ford had a free hand at the whole market but nonetheless created what was arguably the fastest stock Mustang up to that point in time with the 2003–2004 SVT Cobra. However, concerns over a price gap between the GT and Cobra, as well as interest in keeping sales up before the release of the all-new 2005 S197 Mustang prompted the creation of two unique mid-range performance models: The 2001½ Bullitt GT and the 2003 and 2004 Mach 1 both credited to Team Mustang led by Art Hyde and Scott Hoag. Following the stir caused by the retro 2001 "Bullitt" (a lightly modified 2001 GT, named for the famed chase Mustang driven by Steve McQueen in the film Bullitt) Ford saw the value of heritage in the Mustang name and as a follow-up, sought to revive the Mach 1 name. While similar to