The Ford Shelby II Cabrio, specifically the facelifted 2010 model produced from 2013 to 2014, represents a potent iteration of Ford’s iconic Mustang-based performance car. This open-top variant of the Shelby GT500 aimed to deliver exhilarating performance combined with the freedom of a convertible. While the Shelby name has a rich history dating back to Carroll Shelby’s collaborations with Ford in the 1960s, this modern incarnation focused on pushing the boundaries of American muscle car engineering. The Shelby II Cabrio was not widely sold outside of North America, serving as a halo vehicle for the Mustang lineup and a statement of Ford’s performance capabilities in the US market.
Ford Shelby II Cabrio: A Modern Muscle Car
The Shelby II Cabrio (facelift 2010) GT500 is a high-performance convertible based on the sixth-generation Ford Mustang. It distinguishes itself through significant engine upgrades, aggressive styling cues, and a focus on track-ready performance. The “facelift” designation refers to updates made to the GT500 model in 2010, which carried over into these later production years. This model year brought revised styling, improved aerodynamics, and enhancements to the interior, solidifying its position as a top-tier muscle car.
Engine & Performance
At the heart of the Shelby II Cabrio lies a supercharged 5.8-liter (354.67 cubic inch) V8 engine, producing a formidable 672 horsepower at 6500 rpm and 856 Nm (631.35 lb.-ft.) of torque at 4000 rpm. This power is delivered through a 6-speed manual transmission, sending drive to the rear wheels. The engine utilizes a longitudinal layout, contributing to balanced weight distribution. The supercharger, coupled with an intercooler, forces more air into the engine, significantly boosting power output. The power-to-weight ratio of 2.7 kg/Hp and torque-to-weight ratio of 2.1 kg/Nm highlight the car’s impressive performance potential. The engine’s 9:1 compression ratio and 4-valve per cylinder DOHC valvetrain further contribute to its efficiency and power delivery. Fuel is delivered via a multi-port manifold injection system. Fuel economy figures are 13.1 l/100 km combined (18 US mpg, 21.6 UK mpg, 7.6 km/l).
Design & Features
The Shelby II Cabrio is a two-door convertible with seating for four passengers. Its design incorporates aggressive styling elements, including a unique front fascia, side skirts, and rear spoiler, differentiating it from the standard Mustang. The convertible top allows for open-air driving, enhancing the overall driving experience. The car’s dimensions are substantial, measuring 4780 mm (188.19 inches) in length, 1877 mm (73.9 inches) in width, and 1400 mm (55.12 inches) in height. A wheelbase of 2720 mm (107.09 inches) provides a stable platform. Safety features include an Anti-lock Braking System (ABS) and ventilated disc brakes on all four wheels. The car rides on 19-inch and 20-inch wheel rims, fitted with 265/40 ZR19 and 285/35 ZR20 tires respectively. The drag coefficient of 0.38 indicates a focus on aerodynamic efficiency, though primarily geared towards stability at high speeds rather than maximizing fuel economy.
Technical Specifications
| Brand | Ford |
| Model | Shelby |
| Generation | Shelby II Cabrio (facelift 2010) |
| Type (Engine) | GT 500 5.8 V8 (672 Hp) |
| Start of production | 2013 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Cabriolet |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (economy) – urban | 15.7 l/100 km (15 US mpg, 18 UK mpg, 6.4 km/l) |
| Fuel consumption (economy) – extra urban | 9.8 l/100 km (24 US mpg, 28.8 UK mpg, 10.2 km/l) |
| Fuel consumption (economy) – combined | 13.1 l/100 km (18 US mpg, 21.6 UK mpg, 7.6 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 2.7 kg/Hp |
| Weight-to-torque ratio | 2.1 kg/Nm |
| Power | 672 Hp @ 6500 rpm |
| Power per litre | 115.6 Hp/l |
| Torque | 856 Nm @ 4000 rpm (631.35 lb.-ft. @ 4000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine displacement | 5812 cm3 (354.67 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 93.5 mm (3.68 in.) |
| Piston Stroke | 105.8 mm (4.17 in.) |
| Compression ratio | 9:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Supercharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Coolant | 20 l (21.13 US qt | 17.6 UK qt) |
| Kerb Weight | 1801 kg (3970.53 lbs.) |
| Fuel tank capacity | 60 l (15.85 US gal | 13.2 UK gal) |
| Length | 4780 mm (188.19 in.) |
| Width | 1877 mm (73.9 in.) |
| Height | 1400 mm (55.12 in.) |
| Wheelbase | 2720 mm (107.09 in.) |
| Front track | 1572 mm (61.89 in.) |
| Rear (Back) track | 1587 mm (62.48 in.) |
| Ride height (ground clearance) | 118 mm (4.65 in.) |
| Drag coefficient (Cd) | 0.38 |
| Minimum turning circle (turning diameter) | 11.27 m (36.98 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 265/40 ZR19; 285/35 ZR20 |
| Wheel rims size | 19; 20 |
The Ford Shelby II Cabrio (facelift 2010) GT500 represents a high point in American performance car engineering. Its powerful engine, aggressive styling, and convertible design combine to create a thrilling driving experience. While not a high-volume seller, it remains a sought-after vehicle for enthusiasts who appreciate its raw power and iconic status.
