General Motors' GMC division is testament to the importance of design. Each GMC truck and SUV model shares pretty much everything but its appearance with a similar Chevrolet model. But the GMC version is a touch more upscale. And GMC's Denali line-up takes it to the top, essentially offering customers Cadillacs in steel-toed boots. The idea works. GMC is one of GM's most successful brands and the Denalis, like this pick-up, are big money-makers.
