The 2016 Mercedes-Benz AMG CLA45 4matic gets 26 MPG combined, and that number needs some context. This isn’t a practical commuter car; it’s a turbocharged, quick car with luxury features. The CLA45 exists to provide thrills and fast acceleration, not to save fuel like a Prius. Buyers are aware of this trade-off and happily sacrifice some MPG for the performance and prestige that only an AMG can provide.

City and highway performance

The EPA estimates of 23 MPG in the city and 30 MPG on the highway show the CLA45’s dual nature. In stop-and-go traffic, the potent, turbocharged 2.0L engine uses more fuel as it repeatedly spools up for acceleration. However, on the open road, the efficient AM7 automatic transmission helps the CLA45 get a respectable highway figure. Cruising comfortably at 30 MPG is important because it allows drivers to get reasonable efficiency on longer journeys between spirited driving. Those seeking all Mercedes Benz fuel economy data will find many options, but none have the CLA45’s mix of performance and efficiency.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2016 Mercedes-Benz AMG CLA45 4matic will be $2,250. This is based on driving 15,000 miles per year, using the EPA’s combined MPG rating of 26, and national average fuel prices. It’s a standard calculation, so real-world figures may vary depending on driving habits and local fuel costs. However, it provides a good benchmark for comparing the CLA45’s fuel expenses to others in its class. This figure is useful when considering AMG MPG across all years, which shows where this model fits.

Real-world expectations

The EPA provides a good baseline, but expect real-world MPG to change based on driving style. Hard acceleration and aggressive cornering will push fuel consumption higher, perhaps into the low 20s or even high teens. A more conservative driving style, prioritizing smooth acceleration and consistent speeds, can improve real-world MPG closer to the EPA estimates. How you drive the CLA45 affects fuel economy more than the car’s capabilities.

How it compares

The AMG CLA45 competes in a segment where performance is more important than fuel efficiency, but comparisons are still useful. The Audi S3, with its 2.0-liter turbocharged engine, gets around 26 MPG combined. The BMW M235i/M240i, also with a turbocharged engine, gets similar figures, typically around 25-27 MPG combined. The Subaru WRX STI, while less luxurious, has comparable performance but with a fuel economy of around 19 MPG combined. The CLA45 balances performance and efficiency slightly better than some rivals, but the differences are often small for buyers in this segment. They care more about driving experience than minor fuel savings.

Tips to maximize efficiency

Use the car’s driving modes. The “Comfort” mode softens throttle response and optimizes shift points for fuel efficiency, giving a more relaxed driving experience. Using this mode during commutes can reduce fuel consumption compared to driving in “Sport” or “Race” modes.

Make sure tires are properly inflated. Keeping the correct tire pressure minimizes rolling resistance, which reduces the energy needed to move the car. Check tire pressure regularly, especially before long journeys, and follow the recommended pressures on the driver’s side door jamb.

Avoid excessive idling. Idling for a long time wastes fuel, especially in a turbocharged engine like the CLA45’s. If you expect to be stationary for more than a minute, it’s best to turn off the engine. Restarting uses less fuel than idling unnecessarily.

Reduce aerodynamic drag. The CLA45’s styling looks good, but also creates drag. Don’t carry unnecessary items on the roof rack or in the trunk because this increases drag and reduces fuel efficiency. Keep windows closed at higher speeds to reduce drag.

Use cruise control intelligently. On long highway drives, cruise control helps keep a consistent speed, improving fuel efficiency. But don’t use cruise control in hilly terrain because the transmission may downshift often, negating fuel savings. Adjust speed manually as needed.