I had a VW bug that caught on fire from an electrical short and ever since then I always carry a fire extinguisher in all my vehicles. I'm thinking that the right vent might be the best place to spray first and then the wheel wells if you're having an engine fire. I would guess that half the fire damaged vehicles I see are from electrical shorts created in the dash area though. This one had an engine fire but guessing by where it started, it too was electrical. It looks like it started under the TB and the wiring is melted farther back than the fire damage.
