16 MPG combined isn’t just a number for the 2026 Mercedes-Benz AMG GT 63 PRO 4Matic Plus Coupe with its 4.0L 8-cylinder engine; it’s a declaration of intent. This isn’t a vehicle bought for responsible fuel consumption. It’s for the driver who demands visceral power, track-bred dynamics, and an exhaust note that could wake the dead – and expects the fuel bill to reflect that uncompromising performance. The GT 63 PRO, in its ultimate coupe guise, isn’t chasing efficiency; it’s chasing apexes, blurring landscapes, and delivering an adrenaline fix that few other machines can match. The mileage is simply a byproduct of its singular mission: ultimate driving exhilaration.

City and Highway Performance

The EPA rates the GT 63 PRO Coupe at 14 MPG in the city and 20 MPG on the highway. These figures are entirely consistent with a high-performance, twin-turbocharged 4.0L V8 engine channeling monstrous power through an advanced 9-speed automatic transmission and an all-wheel-drive system. City driving, with its stop-and-go nature, necessitates frequent acceleration and braking, which inherently taxes a performance engine. The turbos spool up often, and the engine’s desire to unleash its full 600+ horsepower (specific figures pending, but consistently in this ballpark for PRO models) means it’s rarely sipping fuel. On the highway, where sustained speeds allow the engine to operate closer to its most efficient RPM range, the 20 MPG is actually quite respectable for a vehicle of this caliber. Cruising at legal speeds, especially with the transmission settling into its higher gears, allows the mighty V8 to relax somewhat, providing a glimpse of relative restraint before the next surge of acceleration. This is a car that thrives on open roads, where stretching its legs is not just possible, but encouraged, and where its highway efficiency reflects a more stable and less demanding operational cycle.

Annual fuel cost

The EPA estimates an annual fuel cost of $3,600 for the 2026 Mercedes-Benz AMG GT 63 PRO 4Matic Plus Coupe. This figure is calculated based on driving 15,000 miles per year, with a split of 45% highway and 55% city driving, using national average fuel prices for premium gasoline. For the individual purchasing this particular AMG, $3,600 per year for fuel is not likely to be a significant deterrent. This isn’t a purchase driven by economic prudence; it’s an investment in a dynamic, high-performance driving experience. The annual fuel cost is simply another operational expense, much like insurance, maintenance, and depreciation, all of which are commensurately higher for a vehicle of this pedigree. The buyer of an AMG GT 63 PRO understands that the price of admission extends beyond the showroom floor, embracing the full spectrum of costs associated with experiencing such an exceptional machine.

Real-World Expectations

In the real world, owners of the AMG GT 63 PRO Coupe will likely see fuel economy figures fluctuate notably based on their driving style. Enthusiastic driving, which, let’s be honest, is the primary reason one buys a vehicle like this, will undoubtedly push numbers closer to, or even below, the 14 MPG city rating. Repeated hard acceleration runs, track days, or even just spirited jaunts through winding roads will see the fuel gauge drop with alarming rapidity. On the other hand, a disciplined driver embarking on a long highway journey, using cruise control and maintaining steady speeds, might even marginally exceed the 20 MPG highway mark. However, it’s critical to acknowledge that such restraint is against the very nature and DNA of this AMG. The 4.0L V8 constantly tempts with its immense torque and blistering acceleration. The true real-world expectation is that most owners will average somewhere in the mid-teens, willingly sacrificing efficiency for the sheer joy and thrill of unleashing this car’s profound capabilities. Fuel stops become a frequent, almost ritualistic part of the ownership experience, a brief pause before the next exhilarating drive. For a deeper look at all Mercedes Benz fuel economy data, FuelEconomyHub.com has specific information.

How It Compares

When placed against its direct rivals, the GT 63 PRO’s 16 MPG combined figure positions it squarely within the expected range for its segment. Consider the Porsche Panamera Turbo S E-Hybrid Sport Turismo, which offers a combined 20 MPG but achieves that largely through its plug-in hybrid powertrain, allowing for significant electric-only range. The conventionally powered Panamera GTS, a more direct parallel, typically sits around 19 MPG combined. The BMW M8 Gran Coupe Competition, another four-door coupe powerhouse, often hovers around 17 MPG combined with its own potent V8. Looking within its own family, other models like the standard AMG MPG across all years can vary, but this GT 63 PRO is optimized for peak performance. Even the Aston Martin Vantage F1 Edition, a more focused two-door coupe competitor also powered by AMG’s 4.0L V8, yields similar figures, often in the 17-18 MPG combined range. The GT 63 PRO isn’t an outlier; it’s a participant in an exclusive club where brute force and blistering speed are important, and fuel efficiency, while considered, is never the primary design brief. Its specific 16 MPG reflects its uncompromising performance focus, all-wheel-drive system, and the sheer power it brings to bear.

Tips to Maximize Efficiency

To eke out every possible mile per gallon from the GT 63 PRO, smooth throttle inputs are key. Avoid abrupt acceleration and braking whenever possible, allowing the 9-speed automatic transmission to shift gracefully and keep the engine in its most efficient RPM range. This not only conserves fuel but also contributes to a more refined and comfortable driving experience, though it requires significant driver discipline.

Use the vehicle’s various drive modes effectively. While ‘Sport+’, ‘Race’, and ‘Drift’ modes are undeniably thrilling, they inherently prioritize performance over efficiency. For longer highway cruises or everyday commuting, selecting ‘Comfort’ or ‘Individual’ mode (configured for efficiency) will soften throttle response and optimize transmission shift points for better fuel economy.

Maintain proper tire pressure. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Regularly checking and adjusting your tire pressure to the manufacturer’s recommendations can offer a noticeable, albeit small, improvement in efficiency.

Minimize unnecessary weight. While not always practical for a GT, removing any non-essential items from the trunk or cabin can slightly reduce the vehicle’s overall mass. Less weight means the engine has less to move, leading to marginally better fuel economy, especially in stop-and-go driving.

Plan your routes to avoid excessive idling and traffic congestion. Idling consumes fuel at a rate of approximately 0.5 to 1 gallon per hour for a large V8, and prolonged exposure to gridlock means zero miles per gallon. Using navigation systems for real-time traffic updates can lead to more efficient and less frustrating journeys.