Inline-six engines are thriving. From BMW and Mercedes to Mazda and Stellantis’ Hurricane, see which car companies still build the world's smoothest engines.

Adding real horsepower without tearing your car down to the firewall is not a fantasy. With the right mix of tuning, airflow, ...

Before downsizing and electrification became a thing, several carmakers developed large displacement engines for their flagship production models, taking the old saying "there's no replacement for ...