WASHINGTON ―Kirk Kerkorian, the billionaire mogul and major shareholder in General Motors Corp., said Friday that automakers Renault SA and Nissan Motor Co. are interested in purchasing a significant stake in GM and including the Detroit automaker in their alliance. Kerkorian's investment company, Tracinda Corp., told GM Chairman and CEO Rick Wagoner in a letter that Renault and Nissan are receptive to the idea of including General Motors in their partnership and purchasing "a significant minority interest" in the automaker.