Niki Lauda and James Hunt tribute

Paying homage to one of the greats, Niki Lauda. We get into the rivalry between himself and James Hunt. They were so different but alike in many regards. James drove Niki to constantly chase perfection even after a near death experience. The evolution of the sport on and off the track and where do we rank Senna, Prost, Vettel, and Lauda?