May I suggest that everyone carry a fire extinguisher with them.
While cruising around town today I came up behind the car pictured below while it was experiencing an engine fire. Someone else was already waving wildly at him to pull over and he did so just in time. The owner popped the hood and I was able to put out the fire before A LOT more damage was done. The fire truck showed up about 5 minutes later.
[Blocked Image: http://www.geocities.com/trd4rnr_1999/Photo_040107_001.jpg]