Politicians are mandating the world out of combustion engines, and it’s coming with a fair bit of collateral damage. According to Reuters, until EVs truly take off, engine part makers face a perilous few years where they must invest heavily in new machinery while struggling with falling sales of current automobiles due to supply chain entanglements. Before a major shift in favor of EVs, diesel was expected to be a green fuel of the future. As a result, suppliers invested millions in new machinery to manufacture parts for new diesel models. As recently as 2015, diesel made up nearly 52% of EU c…