21 MPG combined won’t win any awards for less gas, but it reflects the core mission of the 2023 Mercedes-Benz AMG GT 43 4matic Plus: delivering exhilarating performance in a stylish package. This isn’t a car designed for hypermiling; it’s built to thrill its driver with responsive power and confident handling. The target customer understands this trade-off and prioritizes the AMG experience over ultimate fuel efficiency. They are buying a statement, a feeling, and the performance that comes with the AMG badge, and are willing to accept middling fuel economy as a result.

City and highway performance

The EPA estimates for the AMG GT 43 4matic Plus break down to 19 MPG in the city and 24 MPG on the highway.

The city figure reflects the demands of stop-and-go driving, the frequent bursts of acceleration, and the idling at traffic lights. The turbocharged 3.0L inline-six engine, while efficient for its power output, inevitably consumes more fuel when constantly changing speeds. The highway figure is more palatable, as the engine settles into a more consistent cruising rhythm, aided by the smooth-shifting 9-speed automatic transmission. The tall top gears allow for relaxed and relatively frugal highway travel, considering the performance potential on tap.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2023 Mercedes-Benz AMG GT 43 4matic Plus is $2,750. This figure is based on driving 15,000 miles per year and using national average fuel prices.

It is a useful benchmark for comparison, but individual fuel costs will vary significantly depending on driving habits, local fuel prices, and the percentage of city versus highway driving. Aggressive driving will increase costs, while a more conservative driving style can potentially lower them.

Real-world expectations

While the EPA estimates provide a standardized comparison, real-world fuel economy often deviates. Drivers who frequently exploit the AMG GT 43’s performance capabilities, using full throttle acceleration and engaging in spirited driving, will likely see numbers below the EPA estimates. Conversely, those who primarily use the car for longer highway commutes and adopt a gentler driving style might achieve figures closer to, or even slightly above, the 24 MPG highway rating. Consider browsing all Mercedes Benz fuel economy data online forums and owner reviews to get a broader sense of what other drivers are experiencing.

How it compares

Compared to other performance-oriented luxury vehicles, the AMG GT 43 4matic Plus falls somewhere in the middle. The Porsche Panamera 4S, with its turbocharged V6, achieves around 21 MPG combined, similar to the AMG GT 43. The BMW M550i xDrive, boasting a powerful V8, sees around 20 MPG combined. On the other hand, the Audi S7, with its turbocharged V6 engine, can achieve slightly better fuel economy, around 22 MPG combined. These differences, while seemingly small, can add up over time and influence purchasing decisions.

For buyers deeply concerned with MPG, browsing AMG MPG across all years could be the first step.

Tips to maximize efficiency

Take advantage of the AMG’s Eco drive mode. This setting adjusts throttle response, transmission shift points, and other parameters to prioritize fuel efficiency. It won’t transform the car into a Prius, but it can help reduce fuel consumption in everyday driving situations without sacrificing all of the driving enjoyment.

Monitor your tire pressure regularly. Properly inflated tires reduce rolling resistance, which translates to improved fuel economy. Check the sticker on the driver’s side doorjamb for the recommended tire pressure for your AMG GT 43.

Avoid aggressive acceleration and braking. Smooth, gradual inputs are key to maximizing fuel efficiency. Anticipate traffic flow and maintain a steady speed whenever possible to minimize fuel wasted on unnecessary acceleration and deceleration.

Minimize idling. If you’re stopped for more than a minute or two, it’s generally more fuel-efficient to turn off the engine than to let it idle. Modern engines are designed for quick and easy restarts, so you don’t need to worry about excessive wear and tear.

Plan your trips strategically. Combine errands into a single journey to avoid multiple cold starts, which consume more fuel. Use navigation apps to find the most efficient route, avoiding congested areas and unnecessary detours.