The 2017 Mercedes-Benz AMG C63 S Coupe has an EPA fuel economy rating of 19 MPG combined. Of course, this isn’t a number that will win you any awards for lower fuel costs. But that’s not the main point. The C63 S Coupe is designed to deliver thrills and a V8 sound, inside a stunning two-door body. Fuel efficiency is a low priority for its drivers, who are more interested in the power, handling, and presence that this AMG offers. Buyers of a C63 S Coupe expect a tradeoff between performance and economy, and they’re fine with it.

City and highway performance

The 2017 C63 S Coupe’s EPA ratings are 17 MPG in the city and 23 MPG on the highway. The city figure shows the demands of stop-and-go traffic, the constant accelerating and braking that taxes any engine. On the open road, with the engine at a more consistent speed, the C63 S Coupe does a little better. But even then, its power and the temptation to explore the engine’s capabilities will lower those numbers. This car is built for excitement, and its fuel economy reflects that.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2017 Mercedes-Benz AMG C63 S Coupe at $3,050. This is based on driving 15,000 miles per year, using the EPA’s combined MPG rating, and assuming national average fuel prices. But consider that the C63 S Coupe needs premium fuel and encourages an enthusiastic driving style, so expect to exceed that figure. That $3,050 is a low estimate, not a guarantee.

Real-world expectations

While the EPA provides a standard, real-world fuel economy for the C63 S Coupe depends on driving style. A careful driver might get close to the EPA numbers, but few C63 S Coupe owners are careful drivers. More aggressive acceleration, frequent use of the car’s performance modes, and spirited driving on winding roads will lower fuel economy. Expect numbers in the low teens around town and maybe just reach 20 MPG on the highway if you resist the urge to unleash the engine. Think of the EPA estimates as a best-case scenario, possible only under specific conditions.

How it compares

The C63 S Coupe’s fuel economy is similar to its competitors in its performance class. For example, the BMW M4 Coupe is rated at 19 MPG combined, essentially matching the AMG. The Audi RS5 Coupe, with its turbocharged V6, gets a slightly better 21 MPG combined, but doesn’t have the C63 S’s visceral character. The Ford Mustang Shelby GT350 boasts 16 MPG combined and the Chevrolet Camaro ZL1 is rated at 16 MPG combined as well, showcasing the slightly lower fuel consumption of the AMG’s direct competitor vehicles. Buyers in this segment usually prioritize performance over fuel savings, so the differences don’t matter as much in their purchase decisions. Check out all Mercedes Benz fuel economy data to see how models compare across the entire lineup and AMG MPG across all years.

Tips to maximize efficiency

The C63 S Coupe isn’t designed for fuel efficiency, but you can minimize consumption in several ways. Avoid aggressive acceleration and hard braking. The engine’s torque means you rarely need to push the pedal to the floor for a quick burst of speed. Smooth throttle inputs will make a difference.

Use the car’s driving modes. The “Comfort” mode softens throttle response and optimizes the transmission for fuel efficiency, though it is less engaging. Choose this mode when you’re not seeking maximum performance. The “Eco” mode takes it a step further, but most drivers won’t purchase a high performance vehicle only to restrict it to it’s most efficient mode.

Maintain proper tire inflation. Underinflated tires increase rolling resistance, impacting fuel economy. Check your tire pressures regularly and ensure they meet the manufacturer’s recommendations found on the door placard.

Reduce unnecessary weight. Carrying extra cargo increases the engine’s workload and lowers fuel efficiency. Remove any items you don’t need from the trunk and rear seats. Do you really need those golf clubs in the back at all times?

Service the engine regularly. Regular maintenance, including oil changes and air filter replacements, ensures the engine runs properly. A well-maintained engine is a more efficient engine.