By Maureen McDonald Senior Editor Michigan Bureau The Auto Channel If the Vanderhall, three-wheel autocycles weren’t parked next to the bar/coffee shop in the hallway inside the Huntington Center (formerly Cobo Hall) visitors might overlook the trio of vehicles inconspicuously parked there. No signage. No human trilling its benefits. Just vehicles. Spectacular vehicles. The car speaks for itself, helped by a QR code. Website has no “about” section, just vehicles, dimensions and price.