2017-2018 Porsche 911 Cabriolet (991 II) Carrera 4 GTS 3.0 (450 Hp)

The Porsche 911 Cabriolet (991 II) Carrera 4 GTS 3.0, produced from 2017 to 2018, represents a compelling blend of performance and open-air driving enjoyment within the broader 991.2 generation of the iconic 911. Positioned as a high-performance variant within the Carrera 4 lineup, the GTS model bridged the gap between the standard Carrera models and the more track-focused GT3. It offered a significant power upgrade, enhanced handling characteristics, and a more luxurious interior compared to its less powerful siblings. This model year saw Porsche refine the 991 platform, introducing direct injection across the entire range and incorporating a particulate filter to meet increasingly stringent emissions regulations.

Technical Specifications

INTRODUCTION

The 991.2 generation Porsche 911 Cabriolet Carrera 4 GTS 3.0, launched in 2017, represented a significant evolution of Porsche’s iconic sports car. Building upon the already successful 991.1 platform, the 991.2 introduced a new generation of turbocharged engines, refined styling, and updated technology. The Carrera 4 GTS, in particular, was designed to offer a more engaging and visceral driving experience than the standard Carrera models, while still providing the all-weather capability of Porsche’s all-wheel-drive system. The “3.0” designation refers to the engine displacement, and the “GTS” badge signifies a performance-oriented trim level. This variant sat above the Carrera 4 and Carrera 4S in terms of price and performance, but below the more focused GT3 and Turbo models.

Powertrain & Engine Architecture

At the heart of the 911 Carrera 4 GTS 3.0 lies a 3.0-liter twin-turbocharged flat-six engine, designated as the MDC.JA. This engine produced 450 horsepower at 6500 rpm and 550 Nm (405.66 lb-ft) of torque between 2150 and 5000 rpm. The introduction of direct fuel injection was a key upgrade in the 991.2 generation, improving both power and efficiency. The engine utilizes a sophisticated engine management system to optimize fuel delivery and ignition timing. The twin-turbochargers, one for each bank of cylinders, provide instant throttle response and a broad torque curve. The engine’s boxer configuration, with cylinders opposed horizontally, contributes to a low center of gravity, enhancing handling stability. The standard transmission was a 7-speed manual, although an optional 7-speed Porsche Doppelkupplung (PDK) dual-clutch automatic transmission was also available. The PDK transmission offered incredibly fast and smooth gear changes, further enhancing the car’s performance capabilities.

Driving Characteristics

The 911 Carrera 4 GTS 3.0 delivered a thrilling driving experience, characterized by its potent acceleration, precise handling, and engaging feedback. The all-wheel-drive system provided excellent traction, particularly in inclement weather, allowing drivers to confidently exploit the engine’s power. The standard Porsche Active Suspension Management (PASM) system electronically adjusts the damping characteristics of the shock absorbers, providing a comfortable ride in normal driving conditions and a firmer, more controlled feel during spirited driving. The steering was precise and communicative, offering a direct connection to the road. Compared to the standard Carrera 4, the GTS model benefited from a more aggressive suspension setup, larger brakes, and a slightly more responsive throttle. The manual transmission offered a satisfyingly mechanical feel, while the PDK transmission provided lightning-fast shifts and seamless acceleration. The car’s weight distribution, with the engine positioned behind the rear axle, contributed to its exceptional balance and cornering ability.

Equipment & Trim Levels

The Carrera 4 GTS 3.0 came standard with a comprehensive list of features, including a leather interior, sport seats, a Porsche Communication Management (PCM) infotainment system with a 7-inch touchscreen display, and bi-xenon headlights. Optional extras included adaptive cruise control, a Bose surround sound system, and a sunroof. The GTS model also featured unique styling cues, such as a sport exhaust system with black tailpipes, darkened headlight housings, and a distinctive front fascia. Interior trim options included various leather colors and stitching patterns. The standard seats provided excellent support during spirited driving, while optional sport seats plus offered even greater bolstering. The GTS also included Porsche Torque Vectoring Plus (PTV Plus), an electronic rear differential lock that further enhanced cornering agility.

Chassis & Braking

The 911 Carrera 4 GTS 3.0 utilized a sophisticated chassis design, featuring an independent suspension system at all four corners. The front suspension employed McPherson struts, while the rear suspension utilized a multi-link setup. The GTS model benefited from a 10mm lower ride height compared to the standard Carrera 4, further lowering the center of gravity and improving handling. The braking system consisted of ventilated discs at all four corners, with larger rotors and calipers compared to the standard Carrera 4. The GTS also featured Porsche Ceramic Composite Brakes (PCCB) as an optional upgrade, offering even greater stopping power and fade resistance. The all-wheel-drive system employed a viscous coupling to distribute torque between the front and rear axles, providing optimal traction in all conditions.

Market Reception & Comparison

The 911 Carrera 4 GTS 3.0 was widely praised by automotive critics for its exceptional performance, engaging driving dynamics, and luxurious interior. It was often lauded as the sweet spot in the 911 lineup, offering a compelling balance between performance and everyday usability. Compared to the standard Carrera 4, the GTS model provided a noticeable increase in power and a more focused driving experience. Compared to the more expensive GT3, the GTS offered a more comfortable ride and a more refined interior. Fuel economy was respectable for a high-performance sports car, with combined fuel consumption rated at 9.7 l/100 km (24.2 US mpg). Reliability was generally good, although some owners reported minor issues with the infotainment system and the cooling system.

Legacy

The 991.2 Carrera 4 GTS 3.0 has established itself as a highly desirable and collectible Porsche model. Its combination of performance, luxury, and all-weather capability has made it a popular choice among enthusiasts. The 3.0-liter twin-turbocharged engine has proven to be robust and reliable, and the car’s overall build quality is exceptional. On the used car market, well-maintained examples of the 991.2 Carrera 4 GTS 3.0 command premium prices, reflecting their enduring appeal and strong performance credentials. The 991.2 generation 911, and the GTS variant in particular, represents a high point in Porsche’s long and storied history.