20 MPG combined for the 2025 Mercedes-Benz AMG GLE53 4Matic+ Coupe with its 3.0L twin-turbo 6-cylinder engine isn’t going to turn heads in the hybrid SUV market. But for a buyer who prioritizes blistering performance, an intoxicating exhaust note, a luxurious yet undeniably sporty cabin, and the distinctive coupe-like silhouette, this figure represents a surprisingly reasonable trade-off. This isn’t a vehicle bought for its frugality, it’s acquired for its presence, its power, and the sheer joy of piloting a high-performance machine that also happens to carry groceries – very quickly. The fuel economy is merely a line item to acknowledge, not a primary driver of the purchase decision. Owners understand they’re fueling a 429-horsepower luxury SUV that can sprint to 60 mph in a breathtaking 4.3 seconds, and 20 MPG in that context feels almost respectable.

City and highway performance

The EPA estimates for all Mercedes Benz fuel economy data peg the City MPG at 18 and Highway MPG at 22 for the 2025 AMG GLE53 Coupe. In city driving, where the 3.0L engine’s 384 lb-ft of torque (plus electric boost from the EQ Boost mild-hybrid system) is frequently called upon for quick acceleration and navigating stop-and-go traffic, 18 MPG reflects the substantial work being done. The smooth integration of the 48-volt mild-hybrid system, which provides an additional 21 horsepower and 148 lb-ft of torque, undoubtedly contributes to maintaining this figure, smoothing out power delivery and enabling functions like extended start/stop. On the highway, the 9-speed automatic transmission, with its ability to keep the engine revs low at cruising speeds, helps the GLE53 achieve its 22 MPG rating. This is where the vehicle finds its stride, effortlessly devouring miles with remarkable stability and a sense of unflappable power reserve. The aerodynamic coupe roofline, while a style statement, also plays a minor role in reducing drag at higher speeds, contributing to that slightly better highway number.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,900 for the 2025 Mercedes-Benz AMG GLE53 4Matic+ Coupe. This figure is based on driving 15,000 miles per year, with 45% of those miles in city conditions and 55% on the highway, and using national average fuel prices for premium gasoline. For the typical AMG buyer, $2,900 is unlikely to be a budget-breaking expense. It’s a recurring cost anticipated as part of owning a high-performance luxury vehicle, not a family sedan where a few hundred dollars difference in annual fuel cost might sway a purchase. Instead, it’s a readily absorbed operational expense in exchange for the exhilarating driving experience, the prestigious badge, and the advanced technology packed within.

Real-world expectations

Anticipating precisely 20 MPG combined in everyday driving with the AMG GLE53 Coupe requires a disciplined right foot, and that’s not why one buys an AMG. The vehicle’s mission is to be engaging, powerful, and responsive. Push the Sport+ button, engage manual shifting, and exploit the full 429 horsepower, and you’ll predictably see those numbers dip. Aggressive acceleration, frequent braking, and spirited driving on winding roads can easily bring combined figures closer to the low-to-mid teens. Conversely, extended highway cruises with adaptive cruise control engaged and a light foot on the accelerator could potentially nudge the highway number slightly higher than 22 MPG. Owners of this vehicle tend to use its performance potential regularly, meaning their average fuel economy will often hover closer to the lower end of the EPA’s estimates. The 48V mild-hybrid system, while helping during initial acceleration and coasting, is not a full hybrid system designed for significant fuel savings. Its primary role is to enhance performance and smooth driveability, making the most of every drop of premium fuel.

How it compares

The AMG GLE53 Coupe operates within a niche of performance luxury SUVs, where fuel economy is a secondary consideration. When stacked against direct competitors, the 20 MPG combined rating holds its own, often besting more powerful and more thirsty options. For comparison, the BMW X6 M60i, with its 4.4L twin-turbo V8 producing 523 horsepower, typically achieves around 18 MPG combined (16 City / 21 Highway). The Audi SQ8, running a 4.0L twin-turbo V8 with 500 horsepower, also lands around 17-18 MPG combined (15 City / 21 Highway). Even within the AMG family, the 2025 Mercedes-Benz AMG MPG across all years shows that the step up to the full-fat AMG GLE63 S Coupe, with its 603-horsepower twin-turbo V8, drops the combined MPG to a significantly lower 16 (15 City / 20 Highway). This comparison highlights that the AMG GLE53, with its turbocharged inline-six engine and mild-hybrid assistance, strikes a balance between outright performance and comparative efficiency. It offers a thrilling driving experience without the complete penalty at the pump that some of its V8 brethren demand.

Tips to maximize efficiency

While outright efficiency isn’t the primary goal of the AMG GLE53 Coupe, a few conscientious driving habits can help optimize its fuel economy. Regularly engaging the “Comfort” driving mode, as opposed to the more aggressive “Sport” or “Sport+” settings, allows the transmission to shift earlier and the engine mapping to prioritize smoother, less frantic power delivery, directly minimizing fuel consumption.

Maintaining consistent highway speeds and using the advanced cruise control systems significantly helps. Avoiding rapid acceleration and sudden braking, especially in traffic, prevents the engine from constantly working overtime and burning unnecessary fuel to regain momentum.

Ensuring proper tire inflation is a simple yet effective measure. Underinflated tires increase rolling resistance, forcing the engine to work harder. Check your tire pressures monthly, it’s a quick task that yields tangible benefits.

Although it might seem counterintuitive for an AMG, anticipating traffic flow and coasting to stops when possible can make a difference. The mild-hybrid system on the GLE53 can recover energy during deceleration, so using this by allowing the car to coast rather than braking harshly uses that technology effectively.

Keep up with the recommended service schedule for the 3.0L engine. A well-maintained engine with clean filters and fresh fluids operates at peak efficiency, ensuring every drop of fuel is combusted as effectively as possible.