The 2017 Mercedes-Benz AMG GLE63 S Coupe gets 15 MPG combined. Fuel economy isn’t a priority for buyers of this aggressively styled, high-performance SUV. It’s bought for its thunderous V8 sound and its ability to quickly accelerate on the freeway. Low fuel economy is simply the cost to own this vehicle.

City and highway performance

The EPA estimates for the AMG GLE63 S Coupe are 14 MPG in the city and 18 MPG on the highway. The city figure shows the stop-and-go driving that reduces fuel in any vehicle, but the strong 5.5L V8 and curb weight of over 5,200 pounds don’t help. Achieving 18 MPG on the highway requires a disciplined right foot and avoiding using the engine’s power. The 7-speed automatic transmission is generally smooth and responsive and is programmed to deliver rapid acceleration when needed, but not for ultimate efficiency.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2017 Mercedes-Benz AMG GLE63 S Coupe at $3,850. This is based on driving 15,000 miles per year and using national average fuel prices. The AMG requires premium fuel, and owners tend to enjoy its performance, so real-world fuel costs may be higher. Those who frequently exploit the AMG’s performance can significantly add to that annual cost.

Real-world expectations

EPA ratings provide a baseline, but real-world fuel economy for the AMG GLE63 S Coupe depends on driving style and environment. Owners who primarily drive in congested urban settings and frequently accelerate enthusiastically should expect figures closer to, or even below, the EPA’s city estimate. Conversely, those who primarily use the vehicle for highway cruising at moderate speeds may approach the EPA’s highway figure. However, it’s important to remember that this is a performance vehicle, and resisting using its full potential is a constant challenge.

How it compares

The AMG GLE63 S Coupe’s fuel economy is predictably subpar compared to other high-performance SUVs from 2017. The BMW X6 M, with its 4.4L twin-turbo V8, gets a slightly better 16 MPG combined. The Land Rover Range Rover Sport SVR, another competitor, also gets 15 MPG combined, though its supercharged V8 has a uniquely British sound. Even Porsche’s Cayenne Turbo S, known for its performance, achieves a slightly better 17 MPG combined. Buyers considering all Mercedes Benz fuel economy data for 2017 should know this model is an outlier in overall efficiency, which most customers accept. These comparisons highlight owning a vehicle with this level of performance comes at a cost that extends beyond the initial purchase price. However, checking AMG MPG across all years may give you more perspective.

Tips to maximize efficiency

Even though fuel economy may not be important for AMG GLE63 S Coupe owners, there are steps to take to minimize fuel consumption. First, avoid aggressive acceleration and hard braking. The more smoothly you drive, the less fuel you’ll burn. Let the engine’s torque do the work, and anticipate traffic conditions to maintain a steady pace.

Second, regularly check and maintain proper tire pressure. Underinflated tires increase rolling resistance, which reduces fuel economy. Refer to the sticker on the driver’s side doorjamb for the recommended tire pressure. Using the correct tire pressures will optimize efficiency and handling.

Third, reduce unnecessary weight in the vehicle. Carrying extra cargo adds to the vehicle’s overall weight, which increases fuel consumption. Remove any items you don’t need from the trunk or cargo area. A lighter vehicle will be more efficient.

Fourth, consider using the vehicle’s “Comfort” driving mode when possible. This mode typically adjusts engine and transmission settings to prioritize fuel efficiency over performance. It may slightly dampen the car’s response, but it can make a noticeable difference in fuel consumption during everyday driving.