The sale of diesel-powered vehicles in Germany dropped 19% in April as politicians debate imposing bans on diesel cars from certain areas or refitting older engines.
The move comes as the country tries to tackle pollution, Reuters reports.
Overall new car sales in the country have dropped 8% in April.
Meanwhile, electric vehicles posted strong gains from low base levels.
“The market share of diesel cars will probably decline further in the coming months and years because the discussion about diesel vehicles and driving bans won’t stop,” Peter Fuss, a senior partner and automotive specialist in Ernst & Young’s German practice, told Reuters.