the deep pocketed customers of american a lecture a pioneer tesla. fuel isn't so important for porsche in two thousand and seventeen percent of these of about twelve percent of all white. for future we will throughout the world will help. millions of diesel cars still on the streets of europe the emissions conversation could cost billions of euros. the industry should be well advised to look into the background of an imminent driving ban and the customer losses it could bring i would suggest developing a policy for any modifications needed so the customers are not left shouldering the costs it's a lion so here. for years diesel has been a billion dollar business in the e.u. but as the geneva motor show makes clear its dominance in europe could be about to end. and our correspondent do. it at the