Describe the Suggestion

Can you please run the power generation, fluids, gases, shafts, belts and other things, even if it is an entity?
This would, for example, make it easier to build cars.

Screenshots and Videos

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Additional Context

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This would require a large restructuring of the current contraption system, and most likely lead to a large performance impact. But it would be nice.

I know, but it would be much better. You can make it like a car, which produces its rpm.

There is an airship addon that's being worked on which does this, but I don't know how well it works