Car makers ( The latest one is Ford, but others have been doing it for a while) can put any label they like on this, being 'green' , 'getting dirtier vehicles off the road' - but in the end it is obvious it is a marketing ploy to sell more new cars in the sagging European market. Trump has promised to put an import tax (up to 35% ) on German cars into USA as he believes German car makers have been using dirty deals to sell cars in USA over the years, Merkel will not be happy LOL.