Gigantic Caterpillar

This Caterpillar is a large wheel loader, emphasis on large wheel. It’s designed for big jobs, and it’s got the hardware to tackle nearly any job big enough. The tires are 12 feet in diameter, over four and a half feet wide, and cost an insane $89,000 per tire. That is right. That is not a typo. It is a Firestone product and runs nearly $360,000 for a set of tires! So many questions about this strange truck we just don’t know where to start. How much power does this have and how many of them exist?