Believe it or not this fire was intentional. Monster Truck tires take so long to inflate that drivers have been known to use ether to rapidly inflate them. When the tire is flat, they spray some ether into the tire, and a trail out onto the tire as well. They then light the ether with a match, and it rapidly ignites, and follows the trail into the tire causing an internal explosion that expands the tire outward and seals it on the rim. **Do not try this at home, it is extremely dangerous**