Can porcupine quills puncture car tires?
Yes. A porcupine’s quills can puncture tires. It has happened to me when I hit one. I would assume it most cases it doesn’t happen but in the right circumstances the quills can puncture a tire.
Quills were embedded into my tire. It is yet to be determined if the tire has a slow leak, but YES quills can puncture a car tire.