** Shares in German truckmakers fall after President Donald Trump said the U.S. will impose 25% tariffs on heavy-duty trucks, starting October 1, 2025
** Traton 8TRA.DE and Daimler Truck DTGGe.DE are down between 2% and 3% after open
**On the other hand, stocks in peer Volvo VOLVb.ST are up 2%
** All of the Swedish firm's North American plants are located in the U.S. while Daimler Truck could see the largest impact given its significant footprint in Mexico