The 2019 Mercedes-Benz AMG CLA45 4matic has an official EPA rating of 26 MPG combined. However, this car isn’t about Prius-like efficiency. It’s built for a thrilling driving experience, making fuel economy a secondary consideration, a trade-off for its high performance. This stylish, compact four-door coupe delivers serious power, appealing to drivers who prioritize a thrilling experience, even if it means more frequent fill-ups.

City and highway performance

The AMG CLA45’s EPA estimates are 23 MPG in the city and 30 MPG on the highway. These numbers reflect typical stop-and-go and high-speed cruising conditions. The city MPG, while the lowest, is acceptable for a high-performance vehicle. The highway MPG is more respectable, showing some efficiency when the engine runs closer to its optimal range. Your driving habits will determine if you achieve these numbers, especially considering the temptation to tap into the car’s power.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2019 Mercedes-Benz AMG CLA45 4matic at $2,250. This is based on 15,000 miles driven per year and the national average premium gasoline price, which this car requires. Gas price changes significantly affect this cost, as do your driving habits. Expect this number to increase if you drive in stop-and-go traffic or often push the car hard.

Real-world expectations

Real-world MPG can differ from EPA estimates depending on driving style, traffic, and even tire pressure. Owners who frequently use launch control or drive on winding roads probably won’t consistently achieve the advertised numbers. Conversely, those who primarily commute on the highway at moderate speeds may exceed the 30 MPG highway estimate. Consider the EPA’s rating a baseline, not a guarantee. The type of gasoline also impacts fuel economy; always use the premium fuel Mercedes-Benz recommends for optimal performance and efficiency. Check out all Mercedes Benz fuel economy data to see a range of vehicles.

How it compares

The AMG CLA45’s fuel economy is similar to others in its class. The Audi RS 3, another high-performance compact sedan, gets 22 MPG city, 31 MPG highway. The BMW M2 Competition, while a different body style, offers 18 MPG city and 25 MPG highway. The BMW M240i xDrive, with a smaller inline-6 engine, delivers slightly better MPG. These vehicles offer a similar mix of performance and luxury, and fuel economy is often a secondary consideration for buyers.

For a wider view of AMG efficiency, view AMG MPG across all years.

Tips to maximize efficiency

Smooth acceleration and braking can improve fuel economy, especially in the city. Avoid quick starts and hard stops; gradually increase speed.

Use the car’s ECO drive mode, if available. This mode adjusts the throttle and shift points to prioritize fuel use over performance.

Keep tires properly inflated. Underinflated tires increase rolling resistance, reducing fuel mileage. Regularly check tire pressures to the levels on the driver’s side doorjamb sticker.

Minimize idling. If stopped for more than a minute, turn off the engine. Modern cars restart quickly, and idling wastes gas.

Reduce aerodynamic drag. Remove roof racks and accessories when not in use because they increase wind resistance and reduce fuel mileage. Use cruise control on the highway to maintain consistent speed and avoid unnecessary acceleration.

Regular maintenance is essential for good fuel mileage. Keep the engine tuned and replace air filters and spark plugs as the owner’s manual recommends. A properly maintained engine runs more efficiently and delivers better fuel economy.