At the 2004 North American International Auto Show, Ford introduced a completely redesigned Mustang, codenamed "S-197," that was based on an all-new D2C platform for the 2005 model year. Developed under the direction of Chief Engineer Hau Thai-Tang and exterior styling designer Sid Ramnarace, the fifth-generation Mustang's styling echoes the fastback Mustangs of the late 1960s. Ford's senior vice president of design, J Mays, called it "retro-futurism." For the 2010 models, Ford unveiled a redesigned Mustang prior to the Los Angeles International Auto Show. The 2010 Mustang remains on the D2C platform and mostly retains the previous-year's drivetrain options. The Mustang received a thoroughly revised exterior, with only the roof panel being retained, that is sculpted for a leaner, more muscular appearance and better aerodynamic performance (coefficient of drag has been reduced by 4% on V6 models and 7% on GT models). The 2010 model year Mustang was released in the spring of 2009. Ten models were available for the 2010 Mustang: The 2010 model year Mustang was released in the spring of 2009. Ten models were available for the 2010 Mustang, with base prices ranging from $21,395 for the basic V6 to $51,725 for the GT500 Convertible. Ford revised all the Mustang's engines for 2011. The new V6 is a smaller 3.7 L (227 cu. in.) aluminum block engine weighing 40 lb (18 kg) lighter than the outgoing version. The engine produces 305 hp (227 kW) and 280 lb·ft (380 N·m) of torque. Ford announced on December 28, 2009 that the 2011 Mustang GT would feature a 5.0 liter (302 cu. in.) engine displacement that will produce 412 horsepower and 390 ft/lbs of torque on "premium fuel" (gasoline with a pump octane rating of 93); on "regular fuel" (gasoline with a pump octane rating of 87), these numbers fall to 402 hp (300 kW) and 377 lb·ft (511 N·m). The power and performance that the 2011 Mustang GT puts out is largely due to the new Ford 5.0-liter V8 “Coyote” engine. The Coyote is a 32 valve (4 valves per cylinder) with Twin Independent Variable Cam Timing (TiVCT). These cams will control intake and exhaust functions of the vehicle which will maximize combustion and ultimately power. The transmission can be bought in a 6 speed automatic or manual (up from the previous 5 speed transmission). The innovative Electronic Power Assist Steering (EPAS) removes the conventional hydraulic power steering pump. The system does not use belts previously required for steering, thus drive train horsepower loss is decreased. An optional Brembo brake upgrade is available. These brakes essentially come from the Shelby GT-500 and this the first time they will be offered on the Mustang. In addition to the upgraded brake package, Ford will throw in a pair of 19” wheels and performance tires. The Shelby GT500's 5.4L block is now made out of aluminum, instead of iron as in previous years, and is now rated at 550 hp (410 kW) and 510 lb·ft (690 N·m) of torque. Due to being made of aluminum instead of iron, the new block is 102 lb (46 kg) lighter than the old one, which helps to improve fuel economy, acceleration, handling, and steering precision.Fifth generation (2005- )
The fifth-generation Mustang is manufactured at the AutoAlliance International plant in Flat Rock, Michigan. The base model is powered by a 210 hp (157 kW) cast-iron block 4.0 L SOHC V6, which replaces the 3.8 L pushrod V6 used previously. The Mustang GT features an aluminum block 4.6 L SOHC 3-valve Modular V8 with variable camshaft timing (VCT) that produces 300 hp (224 kW). The 2005 Mustang GT has an approximate weight to power ratio of 11.5 lb (5.2 kg)/bhp. The base Mustang comes with a standard Tremec T-5 5-speed manual transmission while Ford's own 5R55S 5-speed automatic, a Mustang first, is optional. Though the Mustang GT features the same automatic transmission as the V6 model, the Tremec T-5 manual is substituted with the heavier duty Tremec TR-3650 5-speed manual transmission to better handle the GT's extra power.
Ford announced in July 2007 that all 2008 Mustangs would have seats containing material derived from soybeans, harking back to some of Henry Ford's ideals.
A new option for the 2009 Mustang was the glass roof. This $1,995 option is in effect a full roof sunroof that splits the difference in price and purpose of the coupe and convertible models.2010
The V6 for base Mustangs remains unchanged, while the Mustang GT's 4.6 L V8 has been revised to specifications similar to that of the 2008–2009 Mustang Bullitt's 4.6 L V8, resulting in 315 hp (235 kW) at 6000 rpm and 325 lb·ft (441 N·m) of torque at 4250 rpm. Other mechanical features for the 2010 Mustang include new spring rates and dampers to improve ride quality and control, standard traction control system and stability control system on all models, and new wheel sizes. For the Mustang GT, two performance packages were made available. Other new features and options for the 2010 Mustang include Ford SYNC, dual-zone automatic climate control, an updated navigation system with Sirius Travel Link, a capless fuel filler, and a reverse camera system to aid in backing up. The SYNC, navigation, and the reverse camera are not available on the basic V6 coupe.2011
The V6's EPA-estimated fuel economy is 19 mpg-US (0.12 L/km) city/29 mpg-US (0.081 L/km) highway with the standard six-speed manual transmission, or 19 mpg-US (0.12 L/km) city/31 mpg-US (0.076 L/km) highway with the optional six-speed automatic transmission. The 5.0L V8 is rated at 17 mpg-US (0.14 L/km) city/26 mpg-US (0.090 L/km) highway with the standard six-speed manual transmission, or 18 mpg-US (0.13 L/km) city/25 mpg-US (0.094 L/km) highway with the optional six-speed automatic. The Shelby GT500 is rated at 15 mpg-US (0.16 L/km) city/23 mpg-US(0.10 L/km) highway with the standard six-speed manual transmission.