20 MPG combined is not the main reason people buy a 2022 Porsche 911 Carrera 4 Cabriolet. It’s a figure tolerated, perhaps even ignored, by the wealthy buyer seeking wind-in-hair thrills combined with all-weather confidence and the unmistakable sound of a flat-six engine. This isn’t just transportation, it’s a meticulously engineered experience, and fuel economy plays a distinctly secondary role in the purchasing calculation.

City and highway performance

The EPA estimates peg the city driving figure at 18 MPG and the highway number at 24 MPG. In stop-and-go traffic, the 3.0-liter turbocharged engine requires more fuel, a consequence of its high-performance nature and the need for consistent boost to deliver the expected acceleration. On the open road, the eight-speed automatic (AM-S8) helps optimize fuel consumption by selecting higher gears more efficiently and better managing the engine’s power output. The all-wheel-drive system, while enhancing grip and stability, also contributes to slightly lower fuel economy compared to the rear-wheel-drive Carrera models.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,900 for the 2022 Porsche 911 Carrera 4 Cabriolet. This calculation is based on driving 15,000 miles per year and using national average fuel prices. Your individual fuel costs will vary depending on your actual driving habits, the price of fuel in your area, and the grade of fuel you choose to use (premium is recommended for optimal performance). This figure is a guide, and owners are likely more focused on track days than fuel receipts.

Real-world expectations

Consider the EPA figures as a baseline. Real-world MPG can change a lot based on driving style. Aggressive acceleration, frequent use of Sport or Sport Plus modes, and spirited weekend drives can easily push the average below the EPA’s estimates. Conversely, a driver who prioritizes smooth acceleration and anticipates traffic flow might see figures closer to, or even slightly exceeding, the highway estimate. Ultimately, the 911 driver dictates the fuel consumption based on how they choose to experience this vehicle’s capabilities. Explore 911 MPG across all years.

How it compares

Compared to competitors, the 2022 911 Carrera 4 Cabriolet’s fuel economy is predictable within its class. The BMW M4 Competition Convertible, with its inline-six and similar power output, achieves roughly 16 MPG city and 23 MPG highway. The Mercedes-AMG C63 S Cabriolet, with its more powerful V8, posts even lower figures, around 17 MPG combined. Even Porsche’s own 718 Boxster GTS 4.0, while smaller and lighter, achieves only slightly improved fuel economy (19 MPG combined). This comparison shows that buyers in this segment prioritize performance, not necessarily fuel efficiency, and are therefore generally accepting of the compromises.

Tips to maximize efficiency

While fuel economy might not be a priority, there are ways to optimize it without sacrificing all driving pleasure. Avoid aggressive acceleration from a standstill. Smooth and progressive throttle inputs prevent unnecessary fuel consumption. The 911 Carrera 4 Cabriolet delivers strong performance even with moderate acceleration.

Anticipate traffic flow and avoid harsh braking. Maintaining a steady speed and planning ahead allows the engine to operate more efficiently. The Porsche Stability Management (PSM) system can help you maintain control even in challenging conditions, allowing for smoother and more efficient driving.

Ensure your tires are properly inflated to the recommended pressure. Underinflated tires increase rolling resistance, which reduces fuel economy. Check tire pressures regularly, especially before long drives to ensure they are near the recommended values. See all Porsche fuel economy data.

Minimize unnecessary weight in the vehicle. Removing heavy items from the trunk or passenger compartment can improve fuel economy, but only a little. Every little bit counts.

Consider using the Normal driving mode for everyday commuting. While Sport and Sport Plus modes offer enhanced performance, they also consume more fuel. Normal mode optimizes fuel efficiency while still providing responsive performance for regular driving situations.