I suspect the tree damage was covered by the tree owners liability coverage since it damaged someone else's propertyThe Champ said:That most likely was a comprehensive automobile claim. There is absolutely no coverage on your HO policy for a licensed vehicle.
As to the OP's situation - a vehicle in pieces could be considered to be contents on the HO policy. It would depend on the policy.
Back in 1979, my dad had his roof collapse on his 7 stall garage and it damaged several vehicles. No coverage for the cars that were licensed, but they did cover the cars/trucks that were unlicensed.
If I wanted to be sure I've got coverage for a collector automobile - I'd have it insured with a collector car company.