Diesel engines are renowned for their ruggedness, torque-heavy power, and workhorse dependability -- not exactly the characteristics linked to high-revving, supercharged excitement. But in a world ...

While major motorcycle manufacturers produce a wide range of impressive mainstream bikes, the custom-built world of motorcycles is far stranger, with some examples that seem to break all the rules.

Over the past five months, YouTuber Robot Cantina has been working on a Kubota diesel-powered Honda Insight. The channel host specializes in oddball engine swaps, like putting Harbor Freight 670cc ...

Six hundred horsepower and 30 mpg? Yes please.