As expected, the body is sleeker and more coupe-like than the more conventional A-Class. Up front, both cars have similar headlight and grille shapes, but the CLA's fascia appears a bit more pointy and forward leaning. The lower grilles are smaller and more restrained than the large openings on the A-Class. This gives the CLA-Class a more svelte appearance.
In profile, we see the roofline is longer and has a continuous arc to it. The doors have less dramatically curved lines than the current CLA, which helps emphasize length. The rear of the car is much longer than the A-Class's stubby tail, which also helps give the car a longer, lower look. The taillights are more slender than those on the A-Class, and the trunk lacks any provisions for a license plate, just like with the AMG GT and Mercedes CLS.
We expect the new CLA-Class to be fully revealed within the year, likely as a 2020 model. The base model will probably share the turbocharged 2.0-liter four-cylinder from the A-Class, which makes 188 horsepower and 221 pound-feet of torque. We have seen an AMG version of the car being tested, which will probably get a version of the current CLA 45's engine. That engine currently makes 375 horsepower, but it's possible AMG will squeeze out a few more for the new model. Mercedes has shown an A 35 hatchback with a less powerful engine, too, and so there could be a mid-level model to fill the space between the two CLA iterations.