As much electronics that are in vehicles now a days, it still amazes me that people carry a fire extinguisher to use. You will do just as much damage with the fire extinguisher as the fire and more than likely not put the fire out.
Knowing what hidden damage fire causes, I'd probably knock someone out who was trying to put my burning vehicle out with a fire extinguisher. Not to mention I know what damage a FD will do to a vehicle and what the water damage will do.
2016 Colorado CCSB WT w/ LT Upgrades