BMW has quite a few engines worth checking out for a potential swap, and the M42 and M44 are two decent four-cylinder picks. They aren't known as the most reliable BMW engines ever built, but that ...

The current Corporate Average Fuel Economy (CAFE) standard calls for a yearly two-percent increase in fuel economy from 2027 forward, requiring a fleet average of around 50 mpg by 2031. From light ...

The four-cylinder engine stands as a cornerstone of automotive history. Without this foundational technology, today's V6 and V8 powerplants may never have come to exist, and the automobile itself ...

We love it when the little car goes "nyoaaaawww", don't we, folks? If you take a piece of Soviet history and jam a modern-ish capitalist German engine between the fenders, do you get a car of, by, and ...

Dubbed the world's first full-billet circuit racing engine, the THOR V2 might not be street-legal, but it's one of the most outrageous turbocharged four-cylinders ever developed. Among hardcore car ...