The first generation of Lexus GX was introduced for the 2003 model year. Known as the J120, the first generation GX was only available as one variant, the GX 470. Powered by a 4.7L V8 engine, these four wheel drive cars featured a combination of luxury and technology. Built until 2009, the J120 was replaced by the second generation Lexus GX J150 for the 2010 model year.