Any fatalities? From the fbi getting involved I assume it was a terrorist event?

Any explosion at a border is going to be treated as a terrorist event until otherwise shown. But cars also generally don’t just explode, so I would also assume criminal malice of some kind at least.

The word explosion is in the headline. No government agency or anyone who was at the scene is quoted using that word. I question whether there even was an explosion.

Cars are fueled by a flammable liquid. The gas can catch fire, and cars do catch fire from time to time. Cars don’t have pressurized fuel tanks, so will burn rather than explode.

However, there is enough fuel for a car fire to be large enough that a layperson might mistake it for an explosion.

This could be an accident. It could be a terrorist attack. But we can be sure that for-profit news companies have an incentive to use whatever language sounds most scary. If it bleeds it leads, as the saying goes.