If you've ever driven behind a semi-truck on the highway, you've probably noticed the huge, wing-like panels or flaps that extend behind the trailer doors. If you didn't know any better, it would seem ...

ZF reveals battery-powered semi trailer concept at IAA Transportation in Germany, previewing a way to reduce ICE truck emissions. The trailer features an electric motor along with regenerative braking ...

We've probably all heard the term "tractor trailer" used when talking about massive semi-trucks. The two names get tossed around so often that they've become interchangeable, begging the question of ...