15 MPG combined is not a misprint. That’s the EPA-estimated fuel economy for the 2018 Mercedes-Benz AMG GLE63 S Coupe, and if you’re surprised, this probably isn’t the vehicle for you. This isn’t about saving fuel; it’s about a boisterous, hand-built AMG engine wrapped in a stylish (if controversial) coupe-SUV body. Buyers in this segment aren’t prioritizing trips to the gas station. They’re buying a statement, a blend of performance and practicality that few vehicles can match, and they’re willing to pay a premium for it.

City and highway performance

The EPA estimates of 14 MPG in the city and 18 MPG on the highway paint a clear picture: this is a thirsty machine. The 5.5L biturbo V8 demands its share, especially under the stop-and-go conditions of urban driving. While 18 MPG on the highway is achievable, it requires a disciplined right foot. Aggressive acceleration, a trademark of the AMG experience, will quickly see those numbers plummet. The 7-speed automatic transmission, while generally smooth and responsive, is geared for performance, not maximizing fuel efficiency. It’s a tradeoff that AMG buyers understand and accept.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2018 Mercedes-Benz AMG GLE63 S Coupe at $3,850. This figure is based on driving 15,000 miles per year and using the national average fuel price at the time of calculation. Keep in mind that premium fuel is required, further contributing to the overall expense. While this cost is significantly higher than many other vehicles, it’s arguably a small price to pay for the performance and prestige that comes with owning an AMG GLE63 S Coupe.

Real-world expectations

While the EPA provides a standardized benchmark, real-world driving conditions vary significantly. Aggressive driving, frequent short trips, and heavy traffic will all negatively impact observed fuel economy. Expect numbers closer to the city rating, especially in congested areas. Conversely, consistent highway driving at moderate speeds might yield figures slightly above the EPA estimate. However, achieving the advertised 18 MPG requires a conscious effort to drive efficiently, which may detract from the overall AMG experience.

How it compares

Compared to its competitors, the AMG GLE63 S Coupe’s fuel economy sits firmly at the lower end of the spectrum. The BMW X6 M, for example, is rated at 16 MPG combined. The Porsche Cayenne Turbo Coupe, while offering similar performance, achieves a slightly better 17 MPG combined. Even other AMG models struggle to reach significantly higher figures; for example, you can view AMG MPG across all years. For the buyer considering this vehicle, however, these differences are often negligible. They’re buying raw power and exclusivity, not prioritizing fuel savings. Price, performance, and badge appeal are greater factors. Consumers interested in all Mercedes Benz fuel economy data can research other models to assess their specific needs.

Tips to maximize efficiency

While fuel efficiency may not be the primary concern, there are still ways to minimize fuel consumption in the AMG GLE63 S Coupe. Smooth acceleration and braking are crucial. Avoid aggressive starts and hard stops whenever possible. The biturbo V8 is incredibly responsive, so gentle inputs still provide ample acceleration without wasting fuel.

Use cruise control on the highway to maintain a consistent speed and minimize unnecessary acceleration. This can help to maximize fuel economy on longer journeys. Also, be mindful of your tire pressure. Properly inflated tires reduce rolling resistance, improving both fuel efficiency and handling. Check your tire pressures regularly and inflate to the recommended specifications.

Reduce unnecessary weight in the vehicle. Carrying heavy items in the trunk or rear seats will negatively impact fuel economy. Remove any items that are not essential for your journey. Finally, combine shorter trips into a single longer journey. Starting a cold engine consumes significantly more fuel than a warmed-up engine, so combining errands can help to improve overall fuel efficiency.

Consider using the “Comfort” driving mode when cruising. While it might slightly dampen the AMG’s responsiveness, it optimizes the engine and transmission settings for fuel efficiency. This is especially beneficial during long highway drives where outright performance is less critical than overall efficiency.