16 MPG combined won’t impress hybrid or electric vehicle shoppers. But for the 2022 Porsche 911 GT3, with its naturally aspirated 4.0L flat-six engine, it’s almost irrelevant. This machine is engineered for thrills and track performance, fuel economy is secondary to performance for those who seek ultimate driving engagement.

City and highway performance

The GT3’s EPA ratings are 15 MPG in the city and 18 MPG on the highway. The city figure reflects stop-and-go traffic and frequent acceleration, common in city driving. In these conditions the high-revving engine isn’t operating efficiently. The highway number, while still modest, shows improvement when the car cruises at a constant speed. This allows the engine to settle into a more economical range, even with the aerodynamic demands of a performance-focused design. The Automatic (AM-S7) transmission, specifically tuned for rapid shifts and optimal gear selection to maximize power delivery, balances performance and efficiency, but economy is not its primary directive.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2022 Porsche 911 GT3 is $3,600. This is based on driving 15,000 miles per year and using national average fuel prices. Premium fuel is required for the GT3’s engine, which increases running costs. This is likely factored into ownership costs by GT3 buyers who prioritize driving experience. If you’re concerned about cost, check 911 MPG across all years to see if another configuration is a better financial fit.

Real-world expectations

EPA estimates offer a baseline, but real-world fuel economy varies depending on driving style and conditions. The GT3 encourages hard driving, and frequent track days or aggressive street driving will lower fuel consumption below EPA estimates. Alternatively, those who primarily use their GT3 for weekend drives and are careful with the throttle might see numbers closer to, or even slightly exceeding, the EPA ratings. This isn’t a car built for hypermiling, and attempting to drastically improve fuel economy compromises the driving experience.

How it compares

The GT3’s fuel economy is comparable to other high-performance sports cars. The Chevrolet Corvette Z06, with its larger V8 engine, achieves a similar 15 MPG combined. The BMW M4 Competition, with its turbocharged inline-six, manages a slightly better 19 MPG combined, reflecting the advantages of forced induction for efficiency. Even the Audi R8 V10, with its naturally aspirated V10, gets around 16 MPG combined. GT3 buyers aren’t cross-shopping with a Prius or a Tesla. They are looking at vehicles in the same performance category, so they understand fuel consumption that comes with that level of capability. It is important to compare to similar vehicles before looking at all Porsche fuel economy data.

Tips to maximize efficiency

While fuel economy isn’t a priority, GT3 owners can minimize fuel consumption if needed.

Avoid aggressive acceleration and braking, since the engine uses more fuel under heavy load.

Anticipate traffic flow and maintain a consistent speed when possible, rather than repeatedly accelerating and decelerating. The GT3’s engine is sensitive to throttle inputs, so smooth driving improves fuel consumption.

Ensure tires are properly inflated to the recommended pressure, since underinflated tires increase rolling resistance and reduce fuel economy. This also improves safety.

Minimize unnecessary weight in the vehicle, since extra weight increases the engine’s workload and impacts fuel consumption. The GT3 is already lightweight, but removing items from the car can improve efficiency.