I had posted this before but it was inadvertently deleted by me, sorry about that. It's of my boys jeepin' with an attempt to cross a creek. Plastic tires and slick rock aren't ideal conditions but they had fun trying!
Thank you, and you're right about the rubber tires. I've wondered if anyone makes a rubber membrane that could fit over the tires like a big rubberband, both for traction and a little smoother, quieter ride.