The REV Force sounds like something magical, like the kind of engine that any gearhead dreams about. This thing is a compact, parallel two-cylinder engine that looks like it can fit into a motorcycle, ...

Is this high-revving, two-stroke, flex-fuel, 106-pound, 173-horsepower, parallel-twin engine really all it’s cut out to be? Detroit’s had its fair share of comebacks, but this one might just be the ...

What if the engine of the future wasn’t just a dream, but a reality? Imagine a power source that combines the raw, exhilarating performance of a two-stroke engine with innovative efficiency, ...