What Car? says...

These days it feels like most car buyers want an SUV, even though they don’t really need one. However, the Mercedes E-Class All-Terrain is aimed at a smaller, but still very real, demographic: people who need an SUV, but don’t want one.

You see, like the Audi A6 Allroad and Volvo V90 Cross Country, the All-Terrain is a traditional upmarket estate car that’s been given four-wheel drive, plastic body cladding to protect against scratches and scrapes and adjustable air suspension so you can increase its ground clearance.