The Ford Flex is a full-size crossover manufactured by Ford. Its styling is based on the Ford Fairlane concept unveiled at the 2005 North American International Auto Show. The production vehicle made its debut at the 2007 New York International Auto Show. Sales of the Flex began in summer of 2008 as a 2009 model. The Flex is produced on the same assembly line as the Edge and Lincoln MKX crossovers at the Oakville Assembly Plant in Oakville, Ontario, where the first Flex was driven off the line at the beginning of June 2008.The Flex continues Ford's signature chrome horizontal three-bar grille design, as seen on the Edge, Taurus X, Fusion, and 2008 Taurus. The windows and pillars appear blacked out, and the roof is available as either white, silver, or body-colored. The Flex includes LED tail lamps and HID head lamps as an option (SEL & Limited models), and a "capless fueling" system, which does away with the traditional fueling door and cap, and provides better sealing to reduce evaporative emissions from the fuel tank. The standard wheels are 18-inch diameter, with 19-inch versions available. 20-inch diameter wheels will become available later in 2008 calendar year, according to Ford brochures.