One reason the Mercedes-Benz E Class is so successful is because it’s available in sedan, coupe, convertible and wagon versions. And each variant is true to the intended mission. For 2021, the E gets some cosmetic freshening and a tech boost starting with the MBUX interface. And it will text you if someone dings it in the parking lot. Tom Voelk takes a look at a modestly optioned E 350 4MATIC. And the turbo 4 is plenty powerful if your ears are okay with the note.