Before the GMC Sierra was its own model, it designated trim levels. Here's the history of Sierra Grande, High Sierra, and ...

In 1991, GMC released a high-performance Sonoma variant called the Syclone. That pickup is now considered an all-time-great street truck.

Remember that time when America turned its attention to V6 engines and actually put them in pickup trucks? Not only that, but Detroit also considered 702-cubic-inch V12s for highway trucks, and ...