2007-2009 Ford Shelby II Cabrio GT 500 5.4 V8 (507 Hp)

The Ford Shelby II Cabrio GT 500, produced between 2007 and 2009, represents a potent iteration of Ford’s iconic Mustang, specifically tailored for the open-air driving experience. This model, a continuation of the Shelby legacy, combined the raw power of a supercharged V8 engine with the appeal of a convertible body style. Positioned as a high-performance variant within the Mustang lineup, the Shelby II Cabrio aimed to deliver an exhilarating driving experience, blending American muscle car tradition with modern engineering. While not officially sold under the Shelby name by Carroll Shelby himself, it was a Ford-produced vehicle leveraging the Shelby brand recognition.

The Ford Shelby II Cabrio GT 500: A Modern Muscle Car

The Shelby II Cabrio GT 500 was a relatively short-lived model, bridging the gap between the earlier New Edge Mustangs and the subsequent generation. It capitalized on the growing demand for powerful, yet accessible, performance vehicles. The “II” designation signifies its place as a continuation of the Shelby Mustang lineage, though distinct from the original Shelby Mustangs of the 1960s. It was primarily marketed towards enthusiasts seeking a thrilling driving experience with the added enjoyment of open-top motoring.

Engine & Performance

At the heart of the Shelby II Cabrio GT 500 lies a 5.4-liter V8 engine, meticulously engineered to deliver substantial power. This powerplant, equipped with a Roots-type supercharger and an intercooler, generates a formidable 507 horsepower at 6000 rpm and 651 Nm (480.15 lb.-ft.) of torque at 4500 rpm. The supercharger significantly boosts the engine’s output, providing instant and responsive acceleration. Power is delivered to the rear wheels through a six-speed manual transmission, allowing for precise control and an engaging driving experience. The engine’s longitudinal front-mounted layout contributes to balanced weight distribution. The power-to-weight ratio of 3.6 kg/Hp and torque-to-weight ratio of 2.8 kg/Nm further emphasize the car’s performance capabilities. The engine boasts a compression ratio of 8.4:1 and utilizes a multi-port fuel injection system for optimal fuel delivery. The engine displacement of 5408 cm3 (330.02 cu. in.) and a cylinder bore of 90.2 mm (3.55 in.) combined with a piston stroke of 105.8 mm (4.17 in.) contribute to its robust performance.

Design & Features

The Shelby II Cabrio GT 500 is characterized by its aggressive styling, building upon the Mustang’s already sporty design. The convertible body style, with its two doors and four seats, offers an open-air driving experience. Distinctive design cues, including unique front and rear fascias, side skirts, and a hood scoop, differentiate it from standard Mustang models. The car’s dimensions – a length of 4775 mm (187.99 in.), a width of 1877 mm (73.9 in.), and a height of 1415 mm (55.71 in.) – provide a substantial presence on the road. The wheelbase of 2720 mm (107.09 in.) contributes to its stability. Safety features included ABS (Anti-lock braking system) as standard, reflecting the growing emphasis on vehicle safety during this period. The interior features bolstered seats designed to provide support during spirited driving. The trunk offers 275 liters (9.71 cu. ft.) of storage space. The car rides on 18-inch wheels, fitted with 255/45 R18 front and 285/40 R18 rear tires, enhancing grip and handling. The drag coefficient of 0.38 indicates a focus on aerodynamic efficiency.

Technical Specifications

The Ford Shelby II Cabrio GT 500, though a relatively brief production run, remains a desirable vehicle for enthusiasts. Its combination of powerful engine, sporty styling, and open-air driving experience continues to appeal to those seeking a modern interpretation of the classic American muscle car.