GM doesn't make semi-trucks now, but it used to be one of the leading lights of the industry, thanks to class-leading offerings like the GM Crackerbox.

Semi-trucks can come in all shapes and sizes, dictated largely by their intended purpose. Take one of the largest semi-trucks in existence, for example, which is dubbed the 'Red Giant.' This is a ...

Semi trucks are already massive machines as is, with the average US semi reaching 72 feet and weighing upwards of 25,000 pounds unloaded. They're so big, in fact, that they're even legally required to ...