A Porsche 944 driver was killed in a fire at Daytona a couple of weeks ago and there are some lessons to learn from that tragedy. First, apparently his safety pin was not removed from the fire system meaning it didn't even go off which might have helped. Second, apparently he underestimated the fire and kept going to the next corner station rather than stopping and get out. Lesson here is just get out of the car as fast as possible. It looks like he had a fuel fire but because he kept the car running, the fuel kept pumping in so I guess hit the kill switch when you notice a fire which stops the gas being pumped in to the engine and feeding the fire.
Next, the inside of a car is flammable. The rubber boot on the shifter covers a big hole to under the car where the fire is likely traveling so I'm replacing that with a Nomex Simpson shifter boot which would improve over that a lot in keeping fire outside. Next, I'm probably removing the dash as it can burn. The problem with that is the car isn't SCCA ITS legal anymore once I do that so it's just PCA and NASA only as a result.
Find and seal all holes in the engine firewall and floor. I'm going to try to reduce the wiring inside the car also, it's just more plastic to burn.