19 MPG combined. That’s the figure for the 2022 Porsche 911 Carrera 4 GTS Cabriolet, a car that delivers thrills, not lower fuel costs. Let’s be honest: if you’re comparing this open-top, all-wheel-drive car with a Prius, you’ve made a wrong turn somewhere. This car is for the enthusiast who values the sound of a flat-six engine and the rush of open-air motoring over squeezing every last mile from a gallon of premium fuel. It’s about the experience, the connection to the road, and the feeling of performance, and those sensations require fuel.

City and highway performance

The EPA estimates the 911 Carrera 4 GTS Cabriolet at 17 MPG in the city and 22 MPG on the highway. These numbers reflect the realities of its turbocharged 3.0-liter engine and advanced, though still performance-oriented, automatic (PDK) transmission. The city figure acknowledges urban environments, where the engine spends more time at lower speeds and under acceleration. The highway number, while slightly better, still understands that the GTS is built for driving. Owners probably won’t be hypermiling; rather, they’ll be using the car’s power for effortless overtaking and high-speed cruising, and pushing the car into its upper rev ranges.

Annual fuel cost

The EPA estimates an annual fuel cost of $3,050 for the 2022 Porsche 911 Carrera 4 GTS Cabriolet. This figure is based on driving 15,000 miles per year and using the national average fuel price for premium gasoline. This is a significant sum, but consider it the price of entry. Owners of this vehicle aren’t typically worried about fuel prices; they’re paying for a specific driving experience. Lifestyle choices and income levels mean that a few thousand dollars in fuel costs is less important than the driving satisfaction this car provides.

Real-world expectations

While the EPA estimates provide a baseline, real-world fuel economy will vary depending on individual driving habits and conditions. Frequent usage of the Sport or Sport Plus modes will result in lower MPG figures, as these settings prioritize throttle response and engine performance. Similarly, time spent in heavy traffic or aggressive acceleration will negatively impact fuel consumption. Even driven conservatively in “Normal” mode, getting significantly more than the EPA estimates may be challenging, given the car’s performance and the temptation to show its potential. See 911 MPG across all years and you’ll find that performance and reasonable fuel economy rarely coexist.

How it compares

Compared to its competitors, the 911 Carrera 4 GTS Cabriolet sits in a predictable spot. A Jaguar F-TYPE R Convertible, with its supercharged V8, achieves around 16 MPG combined. The BMW M4 Competition Convertible, a similarly performance-focused machine, manages about 18 MPG. An Audi R8 Spyder V10 Performance, with its exotic engine and higher pricetag, gets a dismal 14 MPG combined. The Porsche offers comparable performance for the money, and falls right in line with them for fuel economy, and buyers in this range will select the Porsche despite any slight differences in MPGs. These buyers aren’t choosing based on fuel economy; they’re considering factors like brand cachet, handling, driving dynamics, and the emotional appeal of the vehicle. Find further all Porsche fuel economy data to inform your decision.

Tips to maximize efficiency

Resist the urge to constantly engage Sport or Sport Plus modes. These settings impact fuel consumption. Use the “Normal” driving mode for everyday commuting and cruising to optimize efficiency. The 911 is still quick, even in this mode.

Prioritize smooth acceleration and braking. Aggressive driving habits consume more fuel. Anticipate traffic flow and maintain a consistent speed when possible. Let the PDK transmission do its work and avoid unnecessary downshifts.

Ensure proper tire inflation. Underinflated tires increase rolling resistance, which reduces fuel economy. Regularly check and maintain the recommended tire pressure, as indicated on the doorjamb sticker.

Minimize idling. Excessive idling wastes fuel, especially in modern turbocharged engines. If you anticipate being stationary for more than a minute, consider turning off the engine. The GTS’s start/stop system can also help reduce idling fuel consumption.

Consider lighter wheels and tires. Aftermarket wheels and tires can alter the fuel economy due to differences in weight and rolling resistance, though it’s typically most beneficial for stop-and-go city driving. Lighter wheels will also provide a performance increase. Note, this will alter the appearance of the car.