Two-stroke? Forced induction? Compression-ignition-capable? That is many unexpected engine technologies combined into a single engine.

This two-stroke design implements the same idea, aiming to run in compression-ignition mode for efficiency while switching over to spark ignition under higher engine loads.

The end result was a two-stroke engine that produced up to 200 horsepower per liter, nearly double what was previously possible—the most powerful engine ever at the time.