These massive, trailer-hauling rides ... aside from the Kenworth K100 that's often theorized to be the basis for Optimus Prime, was the Kenworth W900, which is on its retirement tour after 60 ...

Mention “American big rigs” to someone not associated with the trucking industry, and odds are an image of the Kenworth W900 is going ... gear-jamming a trailer full of Coors beer over to ...