Hello,

this is Immortan Joe's private car and mobile throne, called the Gigahorse. Immortan Joe is the main antagonist in "Mad Max: Fury Road". He is the richest man living at that time and to show off his wealth he has a lot of things on his car twice: "In a world where there is barely one of anything, to show you had power, he's the man who got two of everything".
Two Cadillac Coupe de Villes, two V8 engines locked together through a planetary gear into one drive shaft, two exhaust pipes per side, two 70 inch tractor tires per side, two harpoons and more.
This is the vehicle in which Max, Furiosa and the surviving wives return to the Citadel after the War Rig gets destroyed by flipping over and blocking a canyon pass.

Enjoy!