Few things are quite as jarring to experience while driving as the explosive sound of a semi-truck horn blaring through the streets — unless you're purposefully seeking out a trucker salute. Given the ...

Some semi trucks use 18-speed transmissions because they require the extra gears to keep the engine in its ideal RPM range in various driving scenarios.

Spending a few hundred bucks on a dedicated semi-truck GPS might sound like overkill, especially when your phone already tells you where to go for free. But before you shrug it off, picture this: ...