2015 GMC Sierra Denali: A big rig for the boss

Jeff Glucker typically drives fast and, or luxurious machines, so it was quite a change of pace to spend time with a heavyduty pickup truck. The 2015 GMC Sierra Denali 2500 HD isn t just a truck Still, the diesel engine offered gobs of power and and the interior is as nice as a brandnew Escalade.