( http://www.TFLcar.com )  The brand new 2014 GMC Sierra broke cover today in Detroit. The new GMC pickup features three engine choices just like it's Chevy brother the Silverado. But while the both pickup offer more manly helping of boxy and squared jawed testosterone, the GMC Sierra seems to have had a double helping of morning Wheaties. Bold and rugged certainly describe the design language of the Sierra which now features a slowly opening back lift gate that won't slam down when you pop it open. Check out this exclusive TFLcar video as we bring you today's debut of the new 2014 GMC Sierra direct from Detroit.