22 MPG combined isn’t going to win any green car awards, but that’s not the main thing about owning a 2017 Porsche 911 Targa 4 GTS. This car exists for the owner who demands a thrilling driving experience first, and accepts the fuel consumption as a necessary, although perhaps slightly lamented, byproduct of that performance.

City and highway performance

The EPA estimates the 2017 Porsche 911 Targa 4 GTS, equipped with its 3.0L flat-six engine and seven-speed dual-clutch automatic transmission (AM-S7), achieves 20 MPG in the city and 26 MPG on the highway. These are respectable figures, all things considered. Remember, this is a performance-oriented machine with standard all-wheel drive. The city figure, while seemingly low, reflects stop-and-go traffic, where the engine’s eager throttle response and the car’s relatively heavy weight work against optimal fuel efficiency. The highway number, on the other hand, is quite achievable, assuming a steady cruising speed and a light foot. While this vehicle excels on curvy backroads, a long, straight highway stretch is where these MPG numbers will be closest to reality.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2017 Porsche 911 Targa 4 GTS is $2,650. This figure is based on driving 15,000 miles per year and using national average fuel prices. Obviously, individual fuel costs will vary depending on driving habits and location. But, at that annual cost, the Targa 4 GTS is not a budget-friendly vehicle to operate. This is a significant expense to factor into the total cost of ownership for those considering this high-performance Porsche.

Real-world expectations

While EPA estimates provide a standardized benchmark, real-world MPG can fluctuate significantly. Aggressive driving, frequent short trips, and extended idling will all contribute to lower fuel economy numbers. Conversely, careful throttle control, anticipatory driving, and minimizing unnecessary weight in the car can help drivers approach, or even slightly exceed, the EPA’s estimates. Owners who prioritize maximizing their driving fun may disregard all economy considerations. However, even the most enthusiastic driver can benefit from adjusting their habits slightly to reduce fuel consumption without sacrificing overall enjoyment. The Targa, with its open-top configuration, will add drag relative to the coupe, so driving with the top down at higher speeds is certain to hurt efficiency.

How it compares

Compared to other performance vehicles, the 2017 Porsche 911 Targa 4 GTS occupies an interesting space. A Nissan GT-R, for instance, delivers similar performance but manages only 19 MPG combined. The Chevrolet Corvette Grand Sport, with its more powerful V8, achieves a comparable 19 MPG in combined driving when equipped with the automatic. A BMW M4 Convertible, a likely competitor for buyers wanting open-air performance, comes in at an EPA-estimated 19 MPG Combined. These comparisons matter because while buyers in this segment prioritize performance, they are often savvy enough to recognize relative value. A slightly more efficient option that delivers similar thrills might sway a purchase decision, and there is 911 MPG across all years for potential buyers to compare.

Tips to maximize efficiency

Use the Porsche’s various driving modes. The “Normal” mode will soften throttle response and optimize the engine and transmission for efficiency, whereas “Sport” and “Sport Plus” modes will do the opposite. Drivers can select the optimal mode for the driving conditions to maximize economy.

Maintain proper tire inflation. Under-inflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressure regularly and inflate them to the recommended specifications found on the doorjamb. This is a simple measure that can have a noticeable impact.

Avoid unnecessary idling. Modern engines consume a surprising amount of fuel when idling. If you’re stopped for more than a minute or two, turn off the engine. This simple habit can save fuel, especially during city driving.

Minimize aggressive acceleration and braking. Smooth, gradual acceleration and braking are not only safer but also more fuel-efficient. Anticipate traffic flow and avoid sudden bursts of speed or hard braking, which waste fuel and put unnecessary strain on the engine and brakes. You may want to consult all Porsche fuel economy data for more details.