Common track fire causes:
1. Power steering failures, hose, fluid cap, pump leaking fluid. Fluid on headers = fire! Can happen on the street as well as the track.
2. Hard braking heats front grease joints excess grease splatters to rotors and wallah fire!
3. Catastrophic engine failure oil on headers = Fire!
4. Fuel line leak = Fire
5. Brake caliper leaking brake fluid on hot rotor = Fire
6. Shorted electrical = Smoke and Fire
7. Crash causing fuel from tank or other source and we have Fire.
8. And rubber is another combustible source with a sufficient heat source Fire!