If you go on the Mercedes-Benz website, you'll find the CLA listed under both "sedans" and "coupes." But the CLS does not appear under "sedans." It's only listed under "coupes." So the CLA is a 4-door that simultaneously qualifies as both a sedan and a coupe, but the CLS, despite being a 4-door, is considered a coupe only? I don't get it.