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Cylinder Deactivation
GM seems to really understand this technology, but no other manufacturer seems to be using it on a regular basis. Why not? It seems top be a really easy, cost effective way to have a fire breathing V8, and a fuel sipper on the highway at the same time. Does anyone know why this is hard to mimic, does it have something to do with the push-rod engine?
I would have loved to have seen the new M3 use an updated version of the S65 with this technology.
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