Many car buyers have shifted to SUVs to haul the family. Looking to stand out from the pack? The Mercedes E450 All-Terrain is the sleekest luxury sport ute money can buy. Okay, it’s a station wagon. But it offers all the utility of an SUV in a package that’s easier to load. And, it runs with a mild hybrid system. Tom Voelk checks out a well-equipped 2021 model and ponders the question- when did station wagons become the radical choice?