turret truck; small three-wheeled cargo vehicle with a cylindrical front
A compact, three-wheeled motorized cart used for light hauling, often in factories, warehouses, or narrow urban streets. The cylindrical front houses the engine or cargo area.
from English turret truck
Turret trucks carry parts around inside the factory.
That turret truck is maneuverable, so it's useful even in narrow alleys.
Borrowed from English 'turret truck', referring to the cylindrical turret-like front section.