Driven by cheaper fuel prices and a resurgent appetite for all things large, the truck segment is in the midst of a renaissance like never before: theyāre bigger, smarter, more capable and increasingly luxurious with jaw dropping price tags. And this one is a real monster ā the all-new GMC Sierra Heavy Duty. Iāve driven some big trucks this year including Ramās new 3500 dually Mega Cab but this one feels even more gargantuan. Itās the Sierra 2500 Heavy Duty; taller and longer than its predecessor and now available in AT4 livery for a little more off-road worthiness. Youāll need the various sidesteps, bumper steps and grab handles for this one because itās just that large.