Fisanotti Chrysler 1970 from Argentina
Sorry TobyTwirl - Hiawatha beat you to it. By sheer coincidence there'a another of these mighty machines on AP which has also just been solved.
Built by Juan Carlos Fisanotti and driven by Hector Grandassi. I've seen it described as powered by Chrysler and powered by Dodge, but I'm pretty sure the engine originated in a Dodge Polara. It went through several modifications in bodywork but this is the prototype.