17 MPG combined is what you get when you crave the outrageous performance and undeniable presence of the 2021 Mercedes-Benz AMG GLE63 S 4matic Plus Coupe. This isn’t a vehicle purchased for its gas mileage; it’s a statement piece that happens to transport you and a few companions with incredible speed and a thunderous soundtrack. The target customer values exclusivity, power, and head-turning style far more than saving a few dollars at the pump. They likely have other, more fuel-efficient vehicles or simply aren’t concerned with the cost of premium fuel.

City and highway performance

The EPA estimates the AMG GLE63 S Coupe achieves 15 MPG in the city and 19 MPG on the highway. Considering the hand-built 4.0L twin-turbo V8 produces 603 horsepower and 627 lb-ft of torque, propelling this hefty machine to 60 mph in under 4 seconds, these figures are almost an afterthought. The 9-speed automatic transmission works with the engine, ensuring optimal power delivery regardless of the driving situation. Expect the city MPG to dip further with spirited driving, which is almost inevitable given the car’s addictive performance. Highway cruising, however, can yield figures closer to the EPA estimate if you resist the urge to unleash the V8’s full potential.

Annual Fuel Cost

The EPA estimates the annual fuel cost for the 2021 Mercedes-Benz AMG GLE63 S Coupe to be $3,400. This figure is based on driving 15,000 miles per year, with 45% of those miles driven in the city and 55% on the highway, and using the national average fuel price for premium gasoline at the time of calculation. It’s a considerable sum. Owners of this vehicle are likely accustomed to high running costs associated with luxury performance vehicles, and the sheer driving pleasure derived from the AMG GLE63 S often outweighs any concerns about fuel consumption.

Real-world expectations

While the EPA provides a standardized benchmark, real-world MPG can vary considerably depending on driving habits and conditions. Aggressive acceleration, frequent braking, and stop-and-go traffic will significantly decrease fuel economy. Conversely, a relaxed driving style on open highways can potentially yield slightly better results than the EPA’s 19 MPG estimate. However, given the nature of the vehicle and its intended use, most owners should anticipate averaging around the EPA’s combined rating, perhaps even slightly lower. Premium fuel is mandatory, adding to the overall cost.

How it compares

The AMG GLE63 S Coupe’s fuel economy sits squarely where you might expect compared to other high-performance SUVs. The BMW X6 M, another coupe-like SUV with a similarly powerful engine, manages a slightly better 18 MPG combined. The Porsche Cayenne Turbo Coupe, known for its performance and handling, achieves 17 MPG combined, identical to the AMG GLE63 S. A Range Rover Sport SVR, with its supercharged V8, fares even worse, hovering around 15 MPG combined. These comparisons highlight that fuel efficiency isn’t a priority in this segment; performance, luxury, and style reign supreme. Someone considering all Mercedes Benz fuel economy data already knows this.

Tips to maximize efficiency

While the AMG GLE63 S Coupe isn’t designed for fuel sipping, there are a few techniques to minimize consumption without sacrificing all the fun. Avoid aggressive acceleration and braking whenever possible. The powerful engine provides ample torque at lower RPMs, so there’s rarely a need to push it to the redline during everyday driving.

Use the car’s driving modes. Comfort mode softens the throttle response and optimizes the transmission for efficiency, making it suitable for highway cruising or city commutes. Sport and Sport+ modes significantly increase fuel consumption. This is especially relevant with the breadth of AMG MPG across all years which clearly shows that economy isn’t a primary AMG goal.

Ensure the tires are properly inflated. Underinflated tires increase rolling resistance, which forces the engine to work harder and consume more fuel. Check the tire pressure regularly and maintain the recommended levels specified in the owner’s manual.

Avoid unnecessary weight. Carrying excessive cargo increases the vehicle’s mass, reducing fuel efficiency. Remove any unnecessary items from the trunk and passenger compartment to lighten the load.

Plan your trips efficiently. Combine errands into a single trip to minimize cold starts, which consume more fuel. Avoid peak traffic hours whenever possible to reduce stop-and-go driving.