We're taking a look at this unique GMC Sierra HD Single Cab / Short Bed with 650 supercharged horsepower under the hood, ...

We were going to limit the list to compact and midsize trucks, but it turns out that a short-bed single-cab full-size truck ...

As evidence, most new midsize trucks come strictly as crew cab bodies and in the full-size arena ... rest of the single cabs ...

A regular cab only has one row of seats and limited interior storage, while an extended cab has two rows of seats and also comes with small secondary doors. A crew cab has four full-size doors and ...