16 MPG combined is not the reason anyone buys a 2024 Mercedes-Benz AMG GLE63 S 4matic Plus Coupe. This is a rolling excess, a vehicle for those who prioritize the visceral thrill of a hand-built AMG V8, wrapped in aggressively sculpted sheetmetal, far more than they worry about fuel bills. It’s a flamboyant statement, and the fuel economy figures simply underscore that point.

City and highway performance

The official EPA ratings peg the GLE63 S Coupe at 15 MPG in the city and 19 MPG on the highway. These numbers reflect the significant power output of the 4.0L twin-turbocharged V8 engine lurking under the hood. With 603 horsepower and 627 lb-ft of torque, restraint is a virtue few drivers will consistently exercise. The engine’s immediate response and the 9-speed automatic transmission’s eagerness to downshift contribute to lower city MPG, as does the vehicle’s considerable weight. Highway figures improve slightly, but maintaining a consistent speed is key to approaching that 19 MPG mark. Short bursts of acceleration, a common occurrence even on the open road, will quickly diminish any attempts at less gas.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2024 Mercedes-Benz AMG GLE63 S Coupe at $3,600. This calculation is based on driving 15,000 miles per year, with 45% of those miles driven in the city and 55% on the highway, using national average fuel prices. Considering the premium fuel requirement of this high-performance engine, that $3,600 figure is a realistic expectation for most owners. It is a substantial sum, but one that’s unlikely to deter the target demographic.

Real-world expectations

While the EPA provides a standardized framework, real-world fuel economy can vary significantly based on driving style and conditions. Aggressive acceleration, frequent hard braking, and extended idling will all negatively impact fuel consumption. Conversely, employing a gentler driving style, anticipating traffic flow, and minimizing unnecessary idling can help to improve MPG, though only marginally. Expect numbers closer to the city figure of 15 MPG if your daily driving involves frequent stop-and-go traffic or spirited backroad excursions. Achieving the 19 MPG highway rating is possible, but requires a conscious effort and consistent speed. Ultimately, this is a vehicle where fuel economy is secondary to the driving experience.

How it compares

In the realm of high-performance luxury SUVs, the AMG GLE63 S Coupe’s fuel economy is predictably challenged. The BMW X6 M, with its 4.4L twin-turbo V8, achieves a similar 15 MPG city and 20 MPG highway. The Porsche Cayenne Turbo Coupe, another competitor, lands around 17 MPG combined. The Lamborghini Urus, a more extreme example, offers a dismal 14 MPG combined. The fact that other vehicles in this rarefied segment are similarly fuel-thirsty is unlikely to provide much solace to a GLE63 S Coupe owner, but it does reinforce the understanding that performance comes at a price. Browsing AMG MPG across all years demonstrates this trend.

Tips to maximize efficiency

While outright fuel efficiency might not be the primary goal, some strategies can help to mitigate the GLE63 S Coupe’s thirst. Avoid aggressive acceleration and hard braking. The V8’s immense power is readily accessible, but each burst of speed comes at a significant fuel cost. Smooth, deliberate throttle inputs will noticeably improve your consumption.

Use the available driving modes effectively. The AMG Dynamic Select system offers various modes, including a “Comfort” or “Eco” setting that optimizes engine and transmission parameters for efficiency. While sacrificing some performance, these modes can deliver measurable fuel savings during everyday driving. However, if you are looking for all Mercedes Benz fuel economy data, focusing on the EPA is usually best.

Ensure proper tire inflation. Maintaining the recommended tire pressure reduces rolling resistance, which can contribute to improved fuel economy. Regularly check and adjust tire pressure, particularly before long trips.

Minimize idling. Letting the engine idle for extended periods consumes fuel without covering any distance. Turn off the engine when stopped for more than a minute or two, especially in situations like waiting in parking lots or drive-through lines.