Kenworth first debuted the W900 in 1963, making it the longest-running production semi-truck model. A source cited "increasingly stringent emissions requirements and limitations on availability ...

From the Big Rig Build-Off to People's Choice to five Best of Show winners and much more, take a run through the top standout ...

The diesel-powered big rig, introduced in 1961 ... turning circle possible,' one trucker said. Kenworth's decision to axe the long-lasting truck comes amid some major changes in the trucking ...