I've now seen Mad Max 4, Fury Road.
It seemed to me about 80% Mad Max 2 with the full-on road chases and about 20% Mad Max 3 with the tribal element. I liked the spiky 'hedgehog' cars in the 1st chase, although I found the editing confusing when they entered that electric storm. The 3rd and final chase was akin to Mad Max 2 with good guys and bad guys traversing across the numerous vehicles. The trapezes were damn impressive. I also liked the guitarist flame-thrower! The only thing missing really was a feral kid, although I did see a couple of flashbacks (?) of her before and during the final chase. I didn't pick up what the context was though. A solid 9/10 from me.