Answer:
According to GM, the manufacturer, the "2009 Cadillac Presidential Limousine" is the first not to carry a specific model name.[1][2] The vehicle's outward appearance is that of an enlarged Cadillac CTS limousine; however, the vehicle's chassis and driveline are actually sourced from the GMC Topkick commercial truck.[2][3] Styling elements are sourced from a variety of GM vehicles; for example, the car uses Cadillac Escalade headlights, not CTS units. Although a price tag has not been announced, according to London-based newspaper The Guardian, each limousine cost the U.S. Government US$300,000.[4] However, other sources cite it costing significantly more at ~ ₤300,000 [5] During his presidency, Barack Obama has consistently used the limousine of former President George W. Bush during visits nationwide and internationally.[6][7]