The Saturn Ion was a compact car sold by the Saturn marque of American automaker General Motors between the 2003 and 2007 model years. It used the GM Delta platform. The Ion replaced the Saturn S-Series in 2003, and was replaced by the new Saturn Astra in 2008. As of 2006, the Ion was the longest compact car sold in North America. Production of the Ion ended on March 27, 2007.
In production from 2004 through the 2007 Model Year, Saturn produced the Red Line Sport Compact. This engine/powertrain combination is also shared with the Chevy Cobalt SS Supercharged Edition, which did not start production until the 2005 model year. The Ion Red Line features most interior features from the standard Ion Coupe, including its rear suicide doors, to allow accessibility to the rear seat.
On October 17, 2003 at the Bonneville Salt Flats in Utah, the Saturn Ion Red Line, piloted by the GM Performance Division's "Saturn Land Speed Record Project" set a new land-speed record in the "G/Blown Fuel Altered" Class at 212.684 mph. This exceeded the previous record holder of 183.086 mph that was set in 2001.