These steps ended up being shorter than I was expecting. On the bright side, a couple good tutorials came out of it, so wait a bit for it.
I really attacked the body with melting then tearing and hammering. Some very strong damage. Also worked around the windows as if someone tried breaking in.
Dents to the roof too. Same method. Now, before you ask "Who gets their roof dented?" - have you SEEN Road Warrior?