The 2023 Mercedes-Benz GLC300 4matic Coupe achieves 22 MPG combined, a figure that may not be the best in the automotive market, but one that its target buyer likely expects. This vehicle isn’t about maximum efficiency, it’s about a sleek roofline, premium features, and status. The GLC300 Coupe buyer values style and brand recognition over saving money on fuel, understanding the trade-off.

City and highway performance

The EPA estimates the GLC300 4matic Coupe will get 20 MPG in the city and 26 MPG on the highway. These numbers reflect the difference between stop-and-go city driving and consistent highway speeds. The 2.0L turbocharged 4-cylinder engine needs more fuel when accelerating and decelerating frequently. The 9-speed automatic transmission helps optimize fuel economy on the highway by keeping the engine at its most efficient RPM at higher speeds. Consider these numbers as estimates, as driving style and traffic greatly affect actual MPG, with aggressive driving resulting in lower numbers.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2023 Mercedes-Benz GLC300 4matic Coupe is $2,650. This is based on driving 15,000 miles per year using the national average fuel price at the time of calculation. Fluctuating gas prices affect this figure, higher prices mean a higher annual cost. Buyers should use their own mileage and local fuel costs for a more accurate estimate.

Real-world expectations

While the EPA uses a standardized testing procedure, real-world fuel economy often differs. Weather, tire pressure, cargo weight, and driving style all play a role. The GLC300 Coupe’s all-wheel-drive system adds weight and complexity, slightly reducing fuel efficiency compared to a rear-wheel-drive model. Expect the 22 MPG combined rating to be a realistic target under normal driving conditions, but expect variations. Owners might find hypermiling increases MPG, but that’s rarely a priority for this vehicle’s typical customer.

How it compares

The GLC300 4matic Coupe is a stylish option in the compact luxury SUV segment. Its fuel economy is a consideration along with its style. The BMW X4 xDrive30i, a direct competitor, gets an EPA-estimated 23 MPG combined, a slight advantage. The more traditional GLC300 4matic SUV gets a near identical 22 MPG, so the coupe shape isn’t a huge penalty. The Acura RDX boasts 23 MPG combined, a potentially more efficient alternative that doesn’t have the same brand recognition. For Mercedes Benz data, the GLC300 Coupe’s numbers are similar to other models using the same 2.0L engine and AWD. Buyers wanting better mileage might consider the Lexus NX 350h hybrid, which uses less gas but doesn’t have the GLC Coupe’s sporty look.

Tips to maximize efficiency

The GLC300’s 2.0L turbocharged engine does better with smooth acceleration. Avoid aggressive throttle, especially when starting, as this consumes more fuel. Try to anticipate traffic and keep a steady pace.

Keep tires properly inflated. Underinflated tires increase rolling resistance, making the engine work harder. Check tire pressures and follow the recommended levels on the driver’s side doorjamb. Remember that pressure decreases in cold temperatures.

Reduce extra weight. Carrying excess cargo increases fuel consumption. Remove unnecessary items from the trunk and rear seats. Extra weight reduces MPG, though the effect is less noticeable on shorter trips.

Use cruise control on the highway to maintain a consistent speed. This helps avoid unnecessary acceleration, saving fuel. The GLC300’s adaptive cruise control can improve efficiency by adjusting speed to maintain a safe distance.

Schedule regular maintenance to ensure the engine runs efficiently. Follow the manufacturer’s schedule for oil changes, air filter replacements, and other services. You can research GLC300 MPG across all years for additional information.