2015 GMC Sierra Elevation Edition - Quick Look! ELEVATION EDITION: A NEW LEVEL OF SPORTY STYLE. With a striking .\rbr\rbrMark Williams takes a look at the special Elevation trim for the 2015 Sierra. The Elevation is meant to be the value version of the Sierra, but it has plenty of .\rbr\rbr2015 GMC Sierra 1500 ELEVATION EDITON Servicing Broken Arrow, OK, near Tulsa, Owasso, Bixby and Green Country Oklahoma .\rbr\rbr2015 GMC Sierra 1500 ELEVATION EDITION Servicing Broken Arrow, OK, near Tulsa, Owasso, Bixby and Green Country Oklahoma .