I think my little girl had more fun with this as she could make tracks in the salt with the trucks and fill up and empty the trucks while my little boy well, just scooped... and scooped. (simplymommie.com)
Tesla also has yet to reveal how much the empty trucks, with their presumably hefty batteries, will weigh, so fleet owners don't know how much each truck will be able to carry. (cnbc.com)
In some cases this may entail an empty truck going back, but «in a perfect world, they'd have freight that goes back to the other point.» (truckingmovesamerica.com)