The Mazda Ryuga is a concept car introduced by Mazda and partner Ford at the 2007 North American International Auto Show in Detroit, Michigan. The car, along with the Mazda Nagare which was introduced at the Greater Los Angeles Auto Show, is an exploratory design study intended to illustrate future styling directions for future Mazda passenger vehicles. The Ryuga moniker (pronounced "ree-yoo-ga") is Japanese for "gracious flow".