The Ford Mustang, a name synonymous with American automotive culture, continued its storied legacy with the sixth-generation model, introduced in 2015. The focus of this article is the updated, post-facelift variant, specifically the Ford Mustang Convertible VI (facelift 2017) GT/CS 5.0 V8 (450 Hp) SelectShift, produced from March 2022 to 2023. This particular iteration represents a potent blend of classic muscle car aesthetics, modern performance, and open-air driving excitement. As a two-door, four-seat cabriolet, it firmly occupies the sporty convertible segment, appealing to enthusiasts seeking both visceral performance and an iconic driving experience. The GT/CS designation, signifying “California Special,” adds a layer of heritage and unique styling cues, enhancing its appeal as a collectible and desirable model within the Mustang lineup.
The sixth-generation Mustang marked a significant turning point for the pony car, introducing independent rear suspension across the board for improved handling and comfort, a feature long requested by enthusiasts and critics alike. The 2017 facelift further refined the model with updated styling, enhanced technology, and, crucially for the GT, a more powerful rendition of its legendary 5.0-liter Coyote V8 engine. This specific GT/CS Convertible variant, with its 450 horsepower and advanced 10-speed SelectShift automatic transmission, stands as a testament to Ford’s commitment to evolving the Mustang while staying true to its roots as an accessible, high-performance sports car.
Powertrain & Engine Architecture
At the heart of the Ford Mustang Convertible VI (facelift 2017) GT/CS 5.0 V8 (450 Hp) SelectShift lies the formidable “Coyote” 5.0-liter V8 engine, an engineering marvel that delivers both raw power and a thrilling auditory experience. This naturally aspirated powerhouse is longitudinally mounted in the front, driving the rear wheels, a classic muscle car configuration. With a displacement of 5038 cm3 (307.44 cu. in.), it produces an impressive 450 horsepower at a screaming 7000 rpm, translating to a power-per-liter output of 89.3 Hp/l. Torque figures are equally impressive, peaking at 390.17 lb.-ft. (529 Nm) at 4600 rpm, ensuring robust acceleration across the rev range.
The engine incorporates advanced technologies such as direct injection and multi-port manifold injection, combined with a DOHC (Dual Overhead Camshaft) valvetrain featuring Twin Independent Variable Cam Timing (TIVCT). This sophisticated setup optimizes combustion efficiency and power delivery, while maintaining compliance with Euro 6d emission standards. The compression ratio stands at a high 12:1, indicative of its performance-oriented design. Fueling this beast requires gasoline (petrol), and the engine is equipped with a Start & Stop system and a particulate filter to enhance efficiency and reduce emissions, a nod to modern environmental considerations even in a high-performance vehicle.
Power is channeled through a state-of-the-art 10-speed SelectShift automatic transmission. This gearbox, co-developed by Ford and General Motors, offers rapid, smooth shifts and contributes significantly to the car’s impressive acceleration. The sprint from 0 to 60 mph is achieved in a blistering 4.3 seconds (calculated by Auto-Data.net), while 0 to 100 km/h takes 4.5 seconds. The top speed is electronically limited to 154.72 mph (249 km/h). Despite its potent performance, the combined fuel consumption (WLTP) is rated between 21 and 20.3 US mpg (11.2-11.6 l/100 km), which is respectable for a car of its power and weight, which comes in at 3842.66 lbs (1743 kg) curb weight. The weight-to-power ratio of 3.9 kg/Hp (258.2 Hp/tonne) further underscores its performance capabilities.
Driving Characteristics
The 2017-2023 Mustang GT/CS Convertible with the 5.0L V8 and 10-speed automatic delivers a distinctly different driving experience compared to its manual transmission counterparts or the EcoBoost-equipped models. The 10-speed automatic, while incredibly capable, introduces a degree of isolation from the engine. While paddle shifters allow for manual control, the automatic’s programming prioritizes smooth shifts and fuel efficiency over outright aggression. This results in a more refined and comfortable driving experience, particularly suited for long highway cruises. The gear ratios are optimized for both acceleration and fuel economy, with lower gears providing strong off-the-line performance and higher gears enabling relaxed cruising at highway speeds.
Compared to the 6-speed manual, the automatic sacrifices some driver engagement but gains in ease of use. The manual transmission allows for more precise control over gear selection, enabling the driver to fully exploit the engine’s powerband. The EcoBoost models, with their turbocharged four-cylinder engines, offer a different character altogether – prioritizing fuel efficiency and torque delivery over peak horsepower. The GT/CS, with its naturally aspirated V8, provides a more linear power delivery and a more visceral soundtrack, making it the preferred choice for enthusiasts who prioritize the traditional muscle car experience.
Equipment & Trim Levels
The GT/CS trim level, positioned as a mid-to-premium offering within the Mustang Convertible lineup, builds upon the standard GT features with unique styling and equipment. Standard features include leather upholstery, air conditioning, a premium sound system, and a comprehensive suite of safety features. The 2017 facelift brought an available 12-inch digital instrument cluster, offering customizable displays and a modern aesthetic. Optional extras for the GT/CS Convertible included upgraded wheels, performance tires, a premium audio system by Bang & Olufsen, and various interior trim packages. The California Special package itself added unique exterior styling elements, including the blacked-out grille, side stripes, and rear spoiler, as well as unique interior accents.
Interior upholstery typically consisted of leather-trimmed seats with unique stitching and badging. The dashboard configuration featured a modern design with a central touchscreen display for infotainment and vehicle settings. Available options allowed buyers to personalize the interior with different color schemes and materials. The convertible top was power-operated and available in multiple colors, further enhancing the customization options.
Chassis & Braking
The sixth-generation Mustang, and consequently the 2017-2023 GT/CS Convertible, benefited significantly from the introduction of an independent rear suspension. This replaced the solid rear axle found in previous generations, resulting in a substantial improvement in handling and ride comfort. The front suspension utilizes a McPherson strut design, while the rear employs a multi-link setup. Both are equipped with coil springs and anti-roll bars to minimize body roll and enhance stability.
Braking duties are handled by ventilated disc brakes on all four wheels. The front brakes measure 380×34 mm, while the rear brakes are 330×25 mm. The braking system is augmented by an Anti-lock Braking System (ABS) and Electronic Stability Control (ESC) to provide enhanced stopping power and control in various driving conditions. The GT/CS Convertible’s chassis is reinforced to compensate for the structural changes required for the convertible top, ensuring rigidity and minimizing flex.
Market Reception & Comparison
Critics generally praised the 2017-2023 Mustang GT/CS Convertible for its potent performance, refined handling, and iconic styling. The 5.0L V8 engine and 10-speed automatic transmission were lauded for their smooth operation and impressive acceleration. However, some reviewers noted that the automatic transmission, while capable, lacked the engagement of the manual gearbox. Fuel economy was considered respectable for a car of its performance, but not class-leading.
Compared to other trims in the Mustang lineup, the GT/CS Convertible offered a unique blend of performance and style. The EcoBoost models provided better fuel economy but lacked the V8’s visceral appeal. The standard GT offered similar performance but lacked the GT/CS’s distinctive styling cues. In comparison to competitors like the Chevrolet Camaro Convertible and Dodge Challenger, the Mustang GT/CS Convertible was often praised for its balanced handling and overall refinement.
Technical Specifications
| Category | Specification |
| General Information | |
| Brand | Ford |
| Model | Mustang |
| Generation | Mustang Convertible VI (facelift 2017) |
| Type (Engine) | GT/CS 5.0 V8 (450 Hp) SelectShift |
| Start of Production | March, 2022 year |
| End of Production | 2023 year |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Cabriolet |
| Seats | 4 |
| Doors | 2 |
| Performance Specs | |
| Combined Fuel Consumption (WLTP) | 11.2-11.6 l/100 km (21 – 20.3 US mpg) |
| CO2 emissions (WLTP) | 256-265 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 60 mph | 4.3 sec |
| Acceleration 0 – 100 km/h | 4.5 sec |
| Maximum Speed | 154.72 mph (249 km/h) |
| Emission Standard | Euro 6d |
| Weight-to-Power Ratio | 3.9 kg/Hp (258.2 Hp/tonne) |
| Weight-to-Torque Ratio | 3.3 kg/Nm (303.5 Nm/tonne) |
| Engine Specs | |
| Power | 450 Hp @ 7000 rpm |
| Power per liter | 89.3 Hp/l |
| Torque | 390.17 lb.-ft. (529 Nm) @ 4600 rpm |
| Engine Layout | Front, Longitudinal |
| Engine Model/Code | Coyote |
| Engine Displacement | 307.44 cu. in. (5038 cm3) |
| Number of Cylinders | 8 |
| Engine Configuration | V-engine |
| Cylinder Bore | 3.66 in. (93 mm) |
| Piston Stroke | 3.65 in. (92.7 mm) |
| Compression Ratio | 12:1 |
| Number of Valves per Cylinder | 4 |
| Fuel Injection System | Direct injection and Multi-port manifold injection |
| Engine Aspiration | Naturally aspirated engine |
| Valvetrain | DOHC, TIVCT |
| Engine Oil Capacity | 10.04 US qt (9.5 l) |
| Coolant Capacity | 13.61 US qt (12.88 l) |
| Engine Systems | Start & Stop System, Particulate filter |
| Space, Volume and Weights | |
| Kerb Weight | 3842.66 lbs. (1743 kg) |
| Max. Weight | 4739.94 lbs. (2150 kg) |
| Max Load | 897.28 lbs. (407 kg) |
| Trunk (boot) space – minimum | 11.72 cu. ft. (332 l) |
| Fuel Tank Capacity | 16.11 US gal (61 l) |
| Dimensions | |
| Length | 188.54 in. (4789 mm) |
| Width | 75.43 in. (1916 mm) |
| Width with mirrors folded | 77.05 in. (1957 mm) |
| Width including mirrors | 81.93 in. (2081 mm) |
| Height | 54.96 in. (1396 mm) |
| Wheelbase | 107.09 in. (2720 mm) |
| Front Track | 64.65 in. (1642 mm) |
| Rear (Back) Track | 64.65 in. (1642 mm) |
| Ride Height (Ground Clearance) | 5.67 in. (144 mm) |
| Minimum Turning Circle (Turning Diameter) | 40.03 ft. (12.2 m) |
| Drivetrain, Brakes and Suspension Specs | |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive Wheel | Rear wheel drive |
| Number of Gears and Type of Gearbox | 10 gears, automatic transmission SelectShift |
| Front Suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear Suspension | Independent multi-link spring suspension with stabilizer |
| Front Brakes | Ventilated discs, 380×34 mm |
| Rear Brakes | Ventilated discs, 330×25 mm |
| Assisting Systems | ABS (Anti-lock braking system) |
| Steering Type | Steering rack and pinion |
| Power Steering | Electric Steering |
| Tires Size | Front: 255/40 R19; Rear: 275/40 R19 |
| Wheel Rims Size | Front: 9J x 19; Rear: 9.5J x 19 |
Legacy
The Ford Mustang holds an indelible place in automotive history, pioneering the “pony car” segment and becoming a global symbol of American performance and freedom. The sixth-generation Mustang, especially its post-facelift GT/CS Convertible variant, continues this legacy, adapting to modern demands while retaining its core identity. Its role in the American market is paramount; it’s a direct competitor to other iconic muscle cars like the Chevrolet Camaro and Dodge Challenger, offering a distinct blend of heritage, performance, and everyday usability.
The GT/CS (California Special) trim level itself carries significant historical weight. Originating in 1968 as a limited-production model, it was inspired by a Shelby GT prototype and offered unique styling cues. Its reappearance on modern Mustangs, including this 2022-2023 convertible, connects contemporary buyers with that rich heritage, offering a distinctive package that stands out from a standard GT. This blend of historical significance and modern performance makes the Ford Mustang Convertible VI (facelift 2017) GT/CS 5.0 V8 (450 Hp) SelectShift particularly appealing to collectors and enthusiasts alike.
Beyond its domestic appeal, the sixth-generation Mustang was the first to be truly engineered for global markets, with right-hand drive versions and European-specific tuning. While the GT/CS itself is primarily a North American offering, the underlying platform and powertrain contributed to the Mustang’s global success, expanding its cultural footprint far beyond American borders. Its combination of a powerful naturally aspirated V8, sophisticated independent suspension, and the allure of open-top driving ensures its continued relevance in a rapidly evolving automotive landscape, even as the industry shifts towards electrification. The Mustang GT/CS Convertible serves as a powerful reminder of the enduring appeal of traditional American muscle.
