The introduction of several advanced, efficient, and more robust power options over the years has largely overshadowed steam engine technology ... and exit from the cylinder — or multiple ...

The problem, though, was its 2.0-liter four-cylinder engine. Yes, it's the most powerful four-banger in the world, but it's replacing what was a wonderful V8. Not everyone was ready.

AMG C63 facelift will reportedly feature a new plug-in hybrid powertrain with a six-cylinder engine. It would replace the current turbocharged 2.0-liter four-cylinder that produces a combined 671 hp.

Toyota has been working on going hybrid for years now, and it looks like that strategy is still full steam ... the new hybrid engine, which is based on a new turbocharged four-cylinder powerhouse.

It comes with front- or all-wheel drive. The turbo four-cylinder engine employs mild-hybrid technology that facilitates accessory usage and smooths out the engine's stop/start feature. We measured ...

The standard Sonic uses an unimpressive 1.8-liter four-cylinder engine, which makes the expense of upgrading to the modestly quicker and more fuel-efficient 1.4-liter turbocharged four-cylinder ...