2019 Mercedes-Benz AMG GT 63 S: Fuel Economy Analysis

17 MPG combined will not win any fuel efficiency awards, nor should it surprise anyone familiar with the 2019 Mercedes-Benz AMG GT 63 S 4matic Plus. This is a powerful, all-wheel-drive performance machine with elegant coupe-like sedan sheetmetal. Its purpose is explosive acceleration and visceral driving pleasure, not economy. Fuel consumption is simply a byproduct of that mission.

City and highway performance

The EPA estimates 15 MPG in the city and 20 MPG on the highway. The city number reflects the stop-and-go nature of urban driving, which impacts turbocharged engines like the AMG’s 4.0-liter V8. The highway figure is achievable during steady-state cruising. Resisting the urge to accelerate quickly can be hard given the car’s intoxicating power, and doing so will hurt your fuel efficiency. The 9-speed automatic transmission is quick and responsive during aggressive driving, but it prioritizes performance over ultimate fuel savings, leading to higher fuel consumption at higher speeds.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2019 Mercedes-Benz AMG GT 63 S 4matic Plus to be $3,400. This is based on the EPA’s combined fuel economy estimate of 17 MPG and assumes 15,000 miles of driving per year, using the national average fuel price for premium gasoline during the time of calculation. Premium fuel is a must with this high-performance engine, so this cost provides a realistic picture of what owners can expect to spend on fuel annually. This figure will be higher for drivers exceeding 15,000 miles per year, or those with a heavy foot.

Real-world expectations

EPA estimates provide a baseline, but real-world fuel economy is influenced by driving style and conditions. Owners who frequently exploit the AMG GT 63 S’s performance with hard acceleration, aggressive cornering, and track days should expect significantly lower MPG than the EPA estimates. Those who primarily use the car for long highway commutes with minimal traffic may see fuel economy closer to, or slightly above, the 20 MPG highway rating. The unique driving experience offered by the AMG GT 63 S tends to override any strong focus on maximizing fuel efficiency.

How it compares

The AMG GT 63 S’s fuel economy is typical for this high-performance segment. The Porsche Panamera Turbo S E-Hybrid, with its plug-in hybrid system, achieves a combined MPG of 20 when using both the electric motor and gasoline engine. Relying solely on the gasoline engine drops the MPG considerably. The BMW M8 Gran Coupe offers a slightly better 17 MPG city and 24 MPG highway, but its character is distinct from the unbridled aggression of the AMG. The Audi RS7 mirrors the AMG in terms of performance and luxury, but its MPG figures are similar. Buyers in this segment care more about horsepower, handling, and exclusivity than squeezing every last mile from a gallon of premium fuel. You can view all Mercedes Benz fuel economy data on our site. You can also view AMG MPG across all years.

## Tips to maximize efficiency

While the AMG GT 63 S is not designed for maximum fuel savings, some techniques can help you get better mileage. Avoid accelerating and braking hard, if possible. Smooth, consistent throttle input can improve fuel economy, especially in city driving.

Make sure your tires are properly inflated. Under-inflated tires increase rolling resistance, which reduces fuel efficiency. Check your tire pressure regularly and inflate them to the recommended pressure listed on the door jamb.

Use the car’s driving modes. Select “Comfort” or “Slippery” mode for everyday driving to let the transmission upshift earlier and minimize throttle response. Avoid “Sport+” or “Race” modes on public roads unless you’re looking for maximum performance, as they keep the engine in its most responsive state which uses more fuel.

Reduce weight in the vehicle. Extra cargo adds to the weight, which impacts fuel economy. Remove items you don’t need from the trunk and back seats to improve efficiency.