TRAVERSE CITY CONFERENCE: Why Magna is touting 'scalable building blocks' for future powertrains TRAVERSE CITY CONFERENCE: Why Magna is touting 'scalable building blocks' for future powertrains August 1, 2018 dzadmin Comments 0 Comment Despite conflicting global emissions regulations and consumer demands, automakers can profitably deliver vehicles with as many as 50 powertrain combinations, says a top Magna executive.