The Vehicles in The Road Warrior

[AkiraTubo]

Does anybody know where I can find out exactly what some of those vehicles were?  I'm not having any luck finding out on my own, probably because the information just doesn't exist. :(

I know Max's Interceptor was a Ford Falcon, but I'd really like to know what The Humungus's vehicle started out as, and what that twin-engined thing Papagallo died in was.

Thanks!