The Porsche Panamera is a mid/full-sized luxury vehicle (E-segment in Europe) manufactured by the German automobile manufacturer Porsche. It is front-engined and has a rear-wheel-drive layout, with all-wheel drive versions also available. The production version of the Porsche Panamera was unveiled at the 13th Auto Shanghai International Automobile Show in Shanghai, China, in April 2009. In 2011, hybrid and diesel versions were launched.