The 1955 Mercedes 300SL did more than introduce dramatic gullwing doors to the road. It quietly rewrote the rulebook for ...

Cummins unveiled a 15L hydrogen engine at ACT Expo in Long Beach, California, May 9. Built on Cummins’ new fuel-agnostic platform announced earlier this year, it’s expected to go into full production ...

It promised better power, reliability, and fuel economy. Sadly, though, virtually none of those promises were delivered. Most ...

Kawasaki Heavy Industries, Ltd., Yanmar Power Solutions Co., Ltd. and Japan Engine Corporation announced they have successfully conducted the world’s first land-based operation of marine hydrogen ...

The street car market has come a long way since it went big-time in 1992, when HOT ROD launched its Top 10 Fastest Street Cars in America. In those 30-plus years there have been thousands of street ...

A laboratory duplication of ice crystals clogging the Fuel-Oil Heat Exchanger on a Rolls-Royce Trent 800 engine is shown in photo from NTSB, Safety Recommendations A-09-17 and A-09-18. Credit: NTSB ...