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GREEN | 7 out of 10
2014 Mercedes-Benz CLA 250: 26/38 mpg, 30 mpg combined (FWD)
Fuel mileage, meanwhile, is seen as roughly five-percent better than in the C250 Sport sedan with 1.8-liter turbo, so around 23 miles per gallon in the city and 33 mpg highway.
Figure around 30 miles per gallon on the highway
The 2014 Mercedes-Benz CLA 250 has been rated for fuel economy, but the companion CLA45 AMG hasn't yet received attention from the EPA.
Gas mileage is significantly better than in the larger C-Class, at least in the CLA 250. The front- or all-wheel-drive sedan weighs less than the C-Class, has less aerodynamic drag and has a more efficient transmission than that rear- or all-wheel-drive sedan. It also has standard stop/start, which shuts down and reawakens the CLA when it pauses at stoplights. It's smooth enough, but the stop/start effect sends a quiver through the driveline.
The result is an EPA rating of 26 miles per gallon city, 38 miles per gallon highway, and 30 mpg combined. We've driven the CLA 250 extensively now in the U.S., and have earned more than 37.3 mpg on long interstate runs, without much modulation of our driving habits.
The EPA hasn't distinguished the differences for the upcoming all-wheel-drive versions of the CLA 250, but we expect those numbers to drop by at least 1-2 mpg when it does.
Though diesel versions are offered in other markets, there's no plan to introduce them on the U.S.-market CLA.
The CLA 250 gets excellent EPA ratings of up to 30 mpg combined--and they're within easy reach.