STATION WAGON Wagons are similar to sedans but have an extended roofline and a hatch door at the rear instead of a trunk. Some, like the Subaru Outback or Audi A4 Allroad, have elevated ground clearance and some rugged body cladding to make them more like a sport-utility vehicle (SUV), but they are nonetheless closely related to sedans. Wagons have fallen from favor during the past few decades and there are relatively few available for sale in the United States.