With all of that extra stuff on board, it probably gets what, like two miles to the gallon?
"Yo Steve, those Jenga skills really came in handy, man!"
"Yeah, let's just hope my auto insurance skills are still sharp..."
When the thing you're trying to move is bigger than the car you're trying to move it with, you might run into a few problems!
... and by "problems," I mean "other cars."