General Motors has rolled out an all-new full-sized truck family numerous times through the decades, following a familiar pattern of light-duty pickup, followed by a heavy-duty pickup with more powerful engines and greater payload capacity, and ultimately full-sized SUVs. This time around, GM has shaken up its strategy, further distinguishing different vehicles built from a common platform.
The big news with the near-identical Tahoe and Suburban is their greater dimensions. These already large models have grown significantly in size. The Suburban stretched 1.7 inches. Consequently, the massive vehicle has more interior space than ever.