[1795]

As I think about it, if one has a portable air compressor then the concern of not being able to get the jack underneath the car can be addressed. Unless the tire has a blow out, is otherwise destroyed, or the object that was impaled into the tire has come out, then the object (such as the above mentioned self tapping screw) will act as a partial seal and the tire can be inflated enough to enable the jack to be used and then a repair can commence.

If the tire is destroyed or otherwise not repairable on the road, then it is time for a flatbed. I would hazard a guess that 99% of the cobras on the road lack a spare tire in the boot.