With the 2013 Ford Shelby GT500 -- a 650-horsepower monster of a Mustang -- Ford has made it obvious it has no purpose of ceding any ground to Chevy. And compared with the ZL1, Ford is already preparing a 2013 GT500 Convertible, which it’s revealing at the 2012 Chicago Auto Show. Ford is also working with Chicago to celebrate the 20th anniversary of its Special Vehicles Team.

Not surprisingly, the GT500 convertible has the same powertrain and underpinnings as the hardtop: a new supercharged 5.8-liter V-8, up from 5.4 liters in the old car, that produces 650 hp and 600 lb-ft of torque, sending its power to the rear wheels by way of a six-speed manual transmission and carbon-fiber driveshaft. The V-8 benefits from go-fast tweaks like high-lift camshafts, while the drivetrain scores a stronger clutch and transmission gears. The current 2012 GT500 by comparison offers 550 hp and 510 lb-ft.
Ford claims the 2013 GT500 coupe can hit 200 mph, but it decided to keep things a little saner with the convertible by limiting it to 155 mph. So far, there's no word on whether the top or its operation is any different from the present GT500 convertible, but Ford has revealed that the 2013 drop-top is nearly four seconds quicker around Sebring International Raceway than the outgoing car.
The engine upgrades are matched by new Brembo brakes with six-pistons front calipers; a Performance package that includes Bilstein adaptive dampers and a Torsen limited-slip differential; and an optional Track package that features extra coolers for the engine oil, rear differential, and transmission. Like all 2013 Mustangs, the Shelby GT500 receives a mild facelift comprised of a new grille, narrower headlights, and redesigned LED tail lights.
Going forward, America's SVT and Europe's Team RS will join forces as Ford's Performance Vehicles Group. That will allow the company to sell its future performance models as global cars available around the world. The first example of this is the 2013 Focus ST, which may be followed by a car inspired by the Fiesta ST concept.
The 2013 Shelby GT500 also helps celebrate the two-decade run of Ford's SVT division, commemorated by special illuminated doorsills in the car. The SVT program began with the 1993 SVT Mustang Cobra, which offered a then-impressive 235 hp from its 5.0-liter engine. Ford and SVT followed up with other performance cars including the SVT F-150 Lightning, SVT Contour, SVT Focus, Ford GT supercar, F-150 SVT Raptor, and the recent spate of Mustang Shelby GT500 models.