Porsche sales slumped in the first quarter of the year, with growth in North American deliveries offset by falls in Europe and China.
Deliveries in China, Germany, and the rest of Europe fell by 42%, 34%, and 10% respectively.
Trade war uncertainties and Trump's tariffs are threatening the global car industry, causing a slowdown in sales and impacting the stocks of car manufacturers.
Porsche did not specify the impact of US tariffs on their sales, but part of the drop in European deliveries was also due to discontinuation of non-compliant models.