I obtained eight separate photographs of this room, each taken from a different angle. Upon initial review of the photos, the puzzle vehicle seemed to be placed within the Moto Guzzi display area. Knowing it could not be a Moto Guzzi product, I analyzed the photos further, even mapping out the location of each of the manufacturer's display areas as well as each of the individual vehicles within those display areas. After all of that, I did what I should have done at the beginning--turned my attention away from the location of the vehicles in relation to the signs on the walls and, instead, focused on the (clearly visible) placards leaning against the vehicles' wheels.
As you can see, the puzzle vehicle is one of four Sidus 3-wheelers on display (one of them is hiding a bit), as indicated not only by the sign on the wall, but also by the placard leaning against its front wheel.
