High Quality Content by WIKIPEDIA articles! The Porsche Type 997 (Type Nine-Nine-Seven), also simply called the 997 (Nine-Nine-Seven) is the current version of the 911 sports car built by German manufacturer Porsche. Production of the Carrera and Carrera S coupés began in early 2005 all-wheel drive Carrera 4 and Carrera 4S versions began shipping in November 2005, Turbo and GT3 derivatives went on sale in late 2006 and the 911 GT2 in 2007. In addition to the coupe and cabriolet versions, Targa versions of the Carrera 4 and Carrera 4S are available, which carry on with the "glass canopy" roof design used on all Targa 911s since the Type 993 Generation 911. During 2009 Porsche made comprehensive changes to the 997 lineup which included small styling changes, increases in engine displacement across the board, the addition of Gasoline direct injection and the introduction of the company's new "PDK" Dual clutch transmission as well as other mechanical changes.