Semi-trucks with a gross vehicle weight rating (GVWR) over 33,000 pounds are classified as class 8 vehicles by the Federal Highway Administration. The term semi-truck actually refers to the trailer, ...

Semi-trucks are some of the longest, biggest, and heaviest vehicles on the roads. Semi-trucks -- and here's what "semi" means on a semi-truck-- are wide, averaging 8.5 feet, and can reach 70 to 80 ...

When a semi truck breaks down on the highway, getting it to safety is nowhere near as straightforward as towing a passenger vehicle. These massive machines weigh anywhere from 35,000 to 80,000 pounds, ...