The first generation of the Mercedes-Benz GL, known as the X164, was introduced for the 2007 model year. The X164 GL, which replaced the ML Class, featured a longer and wider platform that was equipped with 4MATIC all-wheel drive and air suspension. These SUVs were mainly powered by a range of V8 engines, with a few V6 and V8 diesel options. Variants offered include the GL450, GL550, GL320 CDI, GL350 CDI, GL350 BlueTEC. Produced until 2012, the X164 GL was replaced by the X166 Mercedes-Benz GL.