I built a 18-wheel tractor-trailer truck after buying five packs of knobby wheels, three packs of wheel kits, some motors, some metal parts, etc. The tractor is about 27 inches long and the trailer is about four feet long. I tried to drive the truck but I didn’t have enough room.
thats really cool, could you post a pic?
I would also love to see this
When you get it running, you have to make a mini vex car to go inside, and try this experiment in miniature.