The flame spewing guitar car in Mad Max Fury Road was called The Doof Wagon!
No image gets that across quite so well as the dude stapped to a car full of speakers, belching out flames and notes from an electric guitar and fuelling the fire of the army behind him. Right so, we've heard a fair amount about this character, including recent news that the guitar did actually work and the fellow in the costume tried to play actual music for 8 hours while wearing a gimp suit.