( http://www.TFLcar.com )  The brand new 2014 GMC Sierra is a giant Tonka toy of a pickup truck. But the new Sierra's design is more than just skin deep. In another exclusive TFLcar video we not only show you the truck interior design but with the help of the truck's lead interior designer we also show you the thinking that went into the design of the interior. And as we're sure you are aware the new 2014 Sierra shares almost all of it's basic design with the new 2014 Chevy Silverado so what's true for the Sierra's interior design also holds true for the Chevrolet.