Detroit -- The North American International Auto Show (NAIAS), one of world's most prestigious of its kind, opens Sunday in Detroit as a deepened economic recession inflicts deep woes to automakers worldwide and overshadows a possible recovery of US ailing auto industry in the near future. The absence of some big names from the show, including Nissan, Suzuki, Mitsubishi, Ferrari, Land Rover, Rolls-Royce and Porsche, serves as a reminder what a trying time the automakers have to endure. The missing companies pull out of the event to save cash in order to outlast the economic slump.