[kdjones2000]

Looking at the larger pictures it seems that the rearmost fuel line failed where it mounts to the fuel rail (looks like an AN fitting), closest to the firewall. It must have been spewing fuel onto the passenger side area, possibly getting into the passenger compartment (The firewall has been modified to tie the roll cage into the front strut towers).

http://www.soundorama.com/car_parts/CarPartPhotos/100_2644.JPG

The interior of the car actually doesn't look too bad to me; the shift handle is still mostly intact, the gauges are not melted, most of the foam on the seat is intact. Keep in mind that (Hopefully) the racer got out of the car before most of the flames would be burning, especially in the interior.

http://www.soundorama.com/car_parts/CarPartPhotos/100_2636.JPG

Sad to see, and one more reason to take real good care of your fuel lines and fittings...