- 2011 GMC Sierra 1500 VIN 3GTP1VE0XBG125006 - New GMC for sale from Desert Pontiac Buick GMC by EveryCarListed.com This 2011 GMC Sierra 1500 SLE that we have at, Desert Pontiac Buick GMC is a must see. This Sierra 1500 has a 5.3 liter 8 cylinder 16 valve engine and a Automatic transmission that is ready to haul up to 1705 pounds. We would love to talk to you more about this Sierra 1500. Please contact us for more information.