Sure they do - especially when the supply chain itself already offers services for that kind of volumes. Take Magna for example, they have worked with both BMW

Sure they do - especially when the supply chain itself already offers services for that kind of volumes. Take Magna for example, they have worked with both BMW and Daimler(-Chrysler) on modern low to mid-volume assembly projects (while also manufacturing the G class super old-school style :) ) and their plant in Austria is specialized for quick retooling to new models. They're starting with the new Jaguar I-Pace EV this year.