Extended cab Sierra trucks have rear doors that open backwards. Second row seating isn't as spacious as you'll find in a crew cab.
2008 GMC Sierra - Extended Cab with Doors Open
2008 GMC Sierra Pickup Trucks
2008 GMC Sierra Pickup Truck
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2008 GMC Sierra 1500 New Features & Highlights2008 GMC Sierra 1500 Fuel Economy RatingsAll GMC Trucks
Chevy Silverado
2008 Chevy Silverado 1500 Photo Gallery2007 Chevy Silverado 1500 ReviewSilverado Factory Accessories
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