new version, with longer rear doors, was introduced. This change also meant that the C-pillars became considerably slimmer. Despite these efforts, the low production DTS-L soon disappeared from the marketplace. Other uses The DTS was available as a 'coachbuilder' chassis for aftermarket conversion into either limousines, or hearses. The limousine model was designated V4U, and the hearse model was designated B9Q. These were only available to manufacturers named as Cadillac Master Coachbuilders, meaning they were certified by General Motors to modify them. The coachbuilder chassis are an incomplete car, with no rear doors, trunk, rear windshield, and other parts not used during the conversion. These models also included 8 lug wheels, upgraded suspension components, as well as a transmission cooler. Presidential State Car A specially designed and outfitted armored vehicle with Cadillac DTS styling (actually a modified medium-duty GMC truck four-wheel drive chassis) with extra high-roof was debuted in the second inauguration of U.S. President George W. Bush, which also served as the debut for the DTS before its official debut at the Chicago Auto Show. While details of the modified vehicle, codenamed "Stagecoach", remain classified, previous such vehicles indicate that it would have been upgraded with advanced armor and safety features in order to protect the president from various threats. Shorter-wheelbase armored DTSes are also cars used by the Vice President of the United States at least since 2010. A modified DTS was also used by former Prime Minister of Canada Stephen Harper. Yearly American sales Next generation The next full-size front-wheel drive Cadillac sedan was the XTS which went on sale in June 2012 as a 2013 model. A second full-size sedan, the rear-wheel drive CT6, was added to the lineup in 2016. Prior to bankruptcy, GM had considered a rear-drive sedan, powered by the new Ultra V8 engine (replacement for the Northstar), to bow for 2010. GM later stopped development of new North American Zeta-based models and canceled the Ultra V8 engine. References External links Consumer Guide: 2006-2010 Cadillac DTS DTS Full-size vehicles Luxury vehicles Front-wheel-drive vehicles Sedans Cars introduced in 2005 2010s cars Limousines Flagship vehicles