Deal to save brand falls apart after auto retailer fails to find another car maker to manufacture vehicles once GM stops production.General Motors Co. (GM-N0.75----%) is killing off its Saturn brand, ending a two-decade-old experiment that involved GM using “a different kind of company” to fight off competition from Japan-based auto makers.Saturn Corp., the brainchild of GM chairman Roger Smith during the 1980s, was set to be sold to Penske Automotive...
