When shopping for a car, our mind often goes to horsepower. But in the world of semi trucks, balance and torque are the most important things. And that's where the inline-6 engine shines. Unlike a V8, ...

Folks, we've got another chapter in the fallout of Mercedes-AMG introducing a plug-in-hybrid inline-4 motor to the C63 and GLC63. The German automaker now says it is preparing to phase out the engine.

The rapid rollback of emissions regulations under the Trump administration represents a radical shift in domestic automotive policy, but that doesn't mean the rest of the world is following in America ...