Tom,
No... I have no idea why it ignited. Heard a loud pop, when driving North on 99 from LA to Sacramento. Looked in my rear view mirror, saw flames coming out of the rear engine hood. Pulled over to the shoulder of the highway, I could already tell it was raging under the hood from the engine compartment. And because I had just filled my gas tank, I moved FAR away expecting it to blow. Sadly, I had to watch in burn before the fire dept even showed up (since I was in the middle of nowhere, way outside Chowchilla). It burned for 45 mins before they even started to hose it down. It took 35 mins to extinguish the flames, 80% of the car simply melted away.
As for my insurance company... my Agent told me I had "premium determination". It's considered a vehicle that's constantly under restoration, so I'm told I should get 100% of the insured value, $30k. Since over the 19 years of ownership, I've spent quite a bit of money "fixing her up". (Well, we'll see about "that". I'm crossing my fingers I'll get that $30k!!!) WISH ME LUCK!
David