German Stuttgart: From 2019, diesel cars and passengers are prohibited
The Baden-Württemberg State Government decided on 11th July “to ban diesel cars from the city of Stuttgart from 2019 according to the exhaust emission regulation · Euro 4”.
The city of Stuttgart is the second largest city in Germany, following the city of Hamburg, prohibiting the driving of diesel cars.
Business Confidence – JETRO
https://www.jetro.go.jp/biznews/2018/07/ed1ca75d5dd1aed5.html