A vehicle, comprising: an engine having an intake port, a stationary intake duct, through which air is led to the intake port of the engine, a moving intake duct arranged movably on an intake side of the stationary intake duct and cooperating with the stationary intake duct to lead the air to the intake port of the engine, an intake duct moving mechanism including a turning member for movement of the moving intake duct, and a drive source for driving of the turning member of the intake duct moving mechanism, and wherein the moving intake duct is moved straight in a predetermined direction (A, B) between a first position, in which an opening of the moving intake duct toward the stationary intake duct is separated from an opening of the stationary intake duct on an intake side, and a second position, in which the opening of the moving intake duct toward the stationary intake duct abuts against the opening of the stationary intake duct on the intake side, wherein a direction, in which the drive source and the turning member are arranged, intersects the predetermined direction (A, B) in which the moving intake duct is moved, wherein a plurality of the stationary intake ducts and a plurality of the moving intake ducts are provided, wherein the intake duct moving mechanism includes an intake duct holding section which holds the moving intake ducts, and wherein the intake duct holding section is moved straight in the predetermined direction (A, B) whereby the moving intake ducts are moved straight between the first position and the second position, characterized in that the intake duct moving mechanism further includes a spindle extending straight in a direction in which the air passage, through which air from the stationary intake ducts passes, extends, the intake duct holding section is moved along the spindle in a direction, in which the spindle extends, the intake duct holding section includes a cylindrical portion surrounding a main insertion hole receiving the spindle, intake duct mount portions, to which the moving intake ducts are mounted, and connection arm portions, and the connection arm portions are formed in a rod-shaped manner on the cylindrical portion, for connection of the cylindrical portion and the intake duct mount portions. an engine having an intake port, a stationary intake duct, through which air is led to the intake port of the engine, a moving intake duct arranged movably on an intake side of the stationary intake duct and cooperating with the stationary intake duct to lead the air to the intake port of the engine, an intake duct moving mechanism including a turning member for movement of the moving intake duct, and a drive source for driving of the turning member of the intake duct moving mechanism, and wherein the moving intake duct is moved straight in a predetermined direction (A, B) between a first position, in which an opening of the moving intake duct toward the stationary intake duct is separated from an opening of the stationary intake duct on an intake side, and a second position, in which the opening of the moving intake duct toward the stationary intake duct abuts against the opening of the stationary intake duct on the intake side, wherein a direction, in which the drive source and the turning member are arranged, intersects the predetermined direction (A, B) in which the moving intake duct is moved, wherein a plurality of the stationary intake ducts and a plurality of the moving intake ducts are provided, wherein the intake duct moving mechanism includes an intake duct holding section which holds the moving intake ducts, and wherein the intake duct holding section is moved straight in the predetermined direction (A, B) whereby the moving intake ducts are moved straight between the first position and the second position, characterized in that the intake duct moving mechanism further includes a spindle extending straight in a direction in which the air passage, through which air from the stationary intake ducts passes, extends, the intake duct holding section is moved along the spindle in a direction, in which the spindle extends, the intake duct holding section includes a cylindrical portion surrounding a main insertion hole receiving the spindle, intake duct mount portions, to which the moving intake ducts are mounted, and connection arm portions, and the connection arm portions are formed in a rod-shaped manner on the cylindrical portion, for connection of the cylindrical portion and the intake duct mount portions.