The 2024 Porsche 911 Targa 4’s 20 MPG combined isn’t going to win any awards for lower fuel costs, but it’s acceptable for what this car is: open-air thrills, all-weather confidence, and a visceral connection to the road that few other vehicles can match. This isn’t a commuter car, it’s a statement, a reward, and a reminder that some experiences are worth more than a few extra miles per gallon. The Targa buyer prioritizes emotional engagement above all else.

City and highway performance

The EPA estimates the 911 Targa 4 at 18 MPG in the city and 24 MPG on the highway. These figures reflect the compromise of a high-performance engine coupled with all-wheel drive. City driving, with its stop-and-go nature, reduces fuel economy as the engine works harder to overcome inertia repeatedly. The highway figure, while slightly better, still lags behind more pedestrian vehicles due to the Targa’s aerodynamic profile (optimized for stability at speed, not ultimate efficiency) and the constant engagement of the all-wheel-drive system, which uses some power. The eight-speed PDK (Porsche Doppelkupplung) transmission, while incredibly quick and responsive, is geared for performance first, economy second. Expect to see closer to 24 MPG on long highway runs if you’re disciplined with the throttle, but spirited driving will quickly erase any gains.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2024 Porsche 911 Targa 4 at $2,900. This figure is based on driving 15,000 miles per year, with 55% of those miles driven in the city and 45% on the highway. The calculation uses the national average fuel price at the time of estimation and assumes the use of premium gasoline, which is mandatory for optimal performance and longevity of the 3.0-liter flat-six engine. This is just an estimate; your actual fuel costs will vary depending on your driving habits, local fuel prices, and the specific conditions in which you operate the vehicle.

Real-world expectations

While the EPA figures provide a baseline, real-world fuel economy for the 911 Targa 4 can vary significantly. Owners who primarily use the car for weekend drives and spirited canyon runs will likely see numbers closer to the city estimate, or even lower. Those who maintain a more conservative driving style on longer trips might achieve figures slightly above the highway estimate. However, the Targa 4 is designed to be enjoyed, and that enjoyment often comes at the expense of optimal fuel economy. The sound of the engine, the responsiveness of the chassis, and the thrill of open-air motoring are all part of the experience, and few owners are likely to prioritize fuel savings over these sensations. The expectation, then, should be that you’ll likely spend more than the $2,900 annual estimate on fuel.

How it compares

Compared to other performance vehicles, the 911 Targa 4’s fuel economy is predictably middling. The BMW M4 Competition xDrive Convertible, for instance, manages a similar 16 MPG city and 23 MPG highway. A Mercedes-AMG C43 Cabriolet achieves a slightly better 19 MPG city and 27 MPG highway, but it lacks the visceral driving experience and iconic status of the 911. Even within the Porsche family, the Targa 4 sits toward the lower end of the fuel-efficiency spectrum. A base 911 Carrera Coupe can achieve 18 MPG city and 25 MPG highway, benefitting from its lighter weight and rear-wheel-drive configuration. This comparison matters because the Targa buyer, while not obsessively focused on fuel economy, is still aware of the broader market and wants to understand the trade-offs they’re making. They’re willing to accept a slight penalty for the Targa’s unique character and all-weather capability, but they’re not looking to be completely out of line with the competition. See 911 MPG across all years.

Tips to maximize efficiency

While the 911 Targa 4 is not inherently fuel-efficient, there are steps owners can take to minimize fuel consumption. Avoid aggressive acceleration and braking. The PDK transmission is remarkably adept at selecting the optimal gear for fuel efficiency when left to its own devices. Resist the urge to constantly downshift for maximum power; instead, trust the transmission to respond appropriately.

Regular maintenance is essential for optimal fuel economy. Ensure that the tires are properly inflated to the recommended pressure, as underinflated tires increase rolling resistance. Routine oil changes and air filter replacements will also help the engine run more efficiently. A well-maintained engine is more fuel-efficient.

Use the car’s driving modes intelligently. The “Normal” mode prioritizes fuel efficiency by optimizing throttle response and shift points. While it may not offer the same level of excitement as “Sport” or “Sport Plus,” it can make a noticeable difference in fuel consumption during everyday driving. Reserve the more aggressive modes for spirited driving on appropriate roads.

Consider the weight you’re carrying. While the Targa 4 isn’t designed for hauling cargo, excessive weight can negatively impact fuel economy. Remove any unnecessary items from the trunk and passenger compartment to reduce the load on the engine.

Every little bit helps. Find all Porsche fuel economy data on this site.