In 2005, Ford introduced the all-new D2C Mustang platform, thus launching the fifth generation of Mustang. As Ford put it, “The new platform is designed to make the Mustang faster, safer, more agile and better-looking than ever.” The fifth generation Mustang was to be built in the new Flat Rock, Michigan facility.
As for the design (codenamed S-197), Ford returned to the classic styling cues that made the Mustang popular to begin with. The 2005 Mustang featured C-scoops in the sides, a 6-inch longer wheelbase, and three-element tail lamps. In the performance arena, Ford said goodbye to the 3.6L V-6 and replaced it with a 210-hp 4.0L SOHC V-6 engine. The GT model featured a 300-hp 4.6L 3-valve V-8 engine.
In 2006, Ford gave buyers the opportunity of purchasing a V-6 Mustang with GT performance features. The “Pony Package” featured GT-inspired suspension, larger wheels and tires, and a custom grille with fog lamps and Pony emblems.
Also introduced in 2006 was the special-edition Ford Shelby GT-H. Reminiscent of the GT350H "Rent-A-Racer" program during the 1960s, Ford produced 500 GT-H Mustangs, which were all distributed to select Hertz rental car locations across the country.
This year marked the release of the GT California Special Package. Available on GT Premium models only, the package features 18-inch wheels, black leather seats embroidered with “Cal Special”, tape stripes, and a large air intake. Also new for 2007 is optional driver and passenger heated seats, a mirror with a compass, and a DVD-based navigation system which was said to be released later in the year.
2007 also marked the release of the Shelby GT and the Shelby GT500. Both vehicles were a collaboration between Mustang legend Carroll Shelby and the Ford Special Vehicle Team. The Shelby GT featured a 4.6L V-8 engine that generated 319 hp, while the GT500 was touted as the most powerful Mustang ever. The GT500 featured a 5.4L supercharged V-8 capable of generating 500 hp.
New for 2008, the Ford Mustang featured High Intensity Discharge (HID) headlamps, 18-inch wheels on the V-6 coupe, and an interior ambient lighting system. Ford brought back the 2008 Mustang Shelby GT and introduced the Shelby GT500KR Mustang (to mark the 40th Anniversary of the original “King of the Road” Mustang). The Shelby GT is powered by a 4.6L V-8 engine which is said to generate 319 hp. The Shelby GT500KR features a 5.4L supercharged V-8 with a Ford Racing Power Upgrade Pack. Ford estimates the vehicle produces around 540 hp. The Shelby GT500 also returned in 2008, featuring a 500 hp Supercharged 5.4-liter four-valve V-8 engine w/intercooler. The Bullitt Mustang was also resurrected, with a limited run of 7,700 units produced.
Also new in 2008 was the limited-edition Warriors in Pink Mustang. The vehicle was designed exclusively in support of Susan G. Komen for the Cure. The Mustang features Pink racing stripes as well as a pink ribbon & Pony fender badge. The Mustang GT California Special also returned in 2008 on GT Premium models.
Special features of the 2009 Mustang include a new glass top roof option as well as special 45th Anniversary badging to commemorate the 45th anniversary of the Ford Mustang's launch on April 17th, 1964. Of note, reports state that only 45,000 units will be sold for the model year. Satellite Radio becomes standard on all premium interior models, and Deluxe is no longer used to identify base models.