Sure. Not having all that electric ignition devices, that would end up as e-waste after a vehicle lifespan, for example. Also its fuel consumption is lower due to the higher thermal efficiency comparing with an average Otto-cycle engine, and it's easier to adapt it to run on alternative fuels (except for gaseous ones that would still need to be blended with a liquid fuel that would act like a spark promoter). Not to talk about the engine design itself, simpler, demanding less productive processes to be manufactured and easier to servicing. And since its lifespan is usually higher it would need less replacement parts that would need more materials to be made of.
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