I love The Road Warrior too - can you imagine how crappy it would be done with CGI?
Unfortunately, yes I can. Did you see Jerry Bruckheimer and Michael Bay's Bad Boys II? There is an action set piece in which the villians are dropping cars from a carrier onto the good guys who are chasing them. What could, in the hands of Steven Spielberg, James Cameron, John Woo, Peter Jackson, Brian Singer, Sam Raimi, or even someone like Richard Donner or John McTiernan or one of the other virutosos of popcorn filmmaking be an exhilarating sequence instead becomes a mishmash of CG and editing so frenetic that it's almost impossible to tell what's going on.