How feasible is this and how much overlap is there. This is a retooling possibly like what happened in WWII when converting from car factories to tank and plane factories. Crucial are the notions that fossil fuel subsidy model based on designed to fail consumption patterns has to be jettisoned as new users will be green and possibly commercial like subscriptions to UBER self driving cars or Tesla network. Maybe some of it would go the way of Lilium? But presumably the work force could be retained or moved to other green conversion projects even in the face of efficiencies that green competitors will employ with automation. Presumably the factories could be left in place even if better economy will be realized by on site batteries and roof top solar. So much of the real estate and in place machinery would still be usable along with some machinery not dedicated to power train production.