What does an under-inflated tire potentially cause?

An under-inflated tire can lead to various serious issues, one of which is an increased risk of vehicle fires. When a tire is not inflated to the appropriate pressure, it can heat up more than usual while driving. This excessive heat can lead to the breakdown of the tire materials, increasing friction and potentially resulting in a fire.

In contrast, the other options do not accurately represent the effects of under-inflated tires. Improved fuel efficiency, reduced stopping distance, and enhanced tire lifespan are all misleading statements regarding the consequences of under-inflation. In reality, under-inflated tires tend to decrease fuel efficiency due to increased rolling resistance, lengthen stopping distances due to reduced traction, and potentially shorten the lifespan of the tire due to increased wear and heat buildup.