16 MPG combined. This is what anyone considering a 2021 Mercedes-Benz AMG GT R Coupe faces, and it’s a figure that separates enthusiasts from those merely curious. This isn’t just basic transportation: it’s a statement. A loud, carbon-fiber clad, track-focused statement, the kind whispered by those who prioritize thrills over fuel efficiency.

City and highway performance

The EPA estimates 14 MPG in the city and 20 MPG on the highway. These numbers are optimistic for anyone who regularly enjoys the GT R’s power. The city figure will drop with every aggressive launch from a stoplight. Achieving 20 MPG on the highway requires restraint in this car. Its 4.0L twin-turbo V8 wants to be unleashed. The automatic (AM7) transmission, brilliant as it is, prioritizes rapid-fire shifts over saving gas. Expect these estimates as best-case scenarios achieved only under gentle driving.

Annual fuel cost

An estimated annual fuel bill is $3,600. This is based on 15,000 miles per year, split between city and highway driving, using the EPA’s fuel economy estimates and national average fuel prices. For AMG GT R owners, this cost represents an investment in the driving experience. It’s the price of acceleration and driving pleasure. It’s a tax on fun, levied at the pump.

Real-world expectations

Owners of the 2021 AMG GT R rarely achieve the EPA’s combined MPG figure. The real number is closer to 12-15 MPG in mixed driving. Track days and weekend drives contribute to this lower average. The reward for this reduced fuel economy is an unmatched driving experience. The GT R delivers sharp handling, explosive acceleration, and a great engine sound. Few owners regret sacrificing fuel efficiency for the adrenaline it provides.

How it compares

The Porsche 911 Turbo S, a direct competitor, gets around 17 MPG combined. The Audi R8 V10 Performance is around 16 MPG combined. Even the less powerful BMW M4 Competition is near 19 MPG combined, with a very different driving experience. These differences often pale compared to other considerations. Buyers in this segment prioritize performance, exclusivity, and brand cachet. For those seeking better fuel economy, all Mercedes Benz fuel economy data shows more efficient options are available. and you can check out AMG MPG across all years to consider other AMG models.

Tips to maximize efficiency

Don’t floor the throttle at every opportunity. The AMG GT R’s engine is sensitive to throttle input. Smooth acceleration will result in better fuel economy than bursts of power.

Pay attention to tire pressures. Properly inflated tires reduce rolling resistance, which improves fuel efficiency. Use the recommended pressures listed on the door jamb sticker, and check them often.

Avoid idling. Modern engines are designed to be efficient, and idling wastes fuel. If you’re stopped for more than a minute, turn off the engine.

Use “Comfort” mode during relaxed driving. Comfort mode softens the throttle response and optimizes the transmission for fuel efficiency. Save the aggressive modes for when you need them.