Markus Wacket and Ilona Wissenbach:

German cities can ban the most heavily polluting diesel cars from their streets, a court ruled on Tuesday, a move that could accelerate a shift away from the combustion engine and force manufacturers to pay to improve exhaust systems.
 The court said Stuttgart, which styles itself the birthplace of the modern automobile and is home to Mercedes-maker Daimler, should consider gradually imposing a year-round ban for older diesel models, while Duesseldorf should also think about curbs.
 Many other German cities exceed European Union limits on nitrogen oxide (NOx), known to cause respiratory disease. After the ruling, the northern city of Hamburg said it would start to implement limits on diesel vehicles from the end of April.
 There has been a global backlash against diesel-engine cars since leading German carmaker Volkswagen (VOWG_p.DE) admitted in 2015 to cheating U.S. exhaust tests. The scandal has spread across the industry and boosted investment in electric vehicles.