What does the nuclear weapon in Fury Roads Survivor do?

When you are wasted (only wasted, not busted), you blow up like a nuke, killing all enemies around you. This may give you extra points or oil; I’m not sure. I definitely like it, just because it gives you the challenge of riding with no gear, then going out with a bang when you die. However, I could see why some would prefer to use the weapons that come into play while you are driving.