General Motors, the largest producer of cars in Mexico, won’t provide details on how it would react if President Trump imposes 25 percent tariffs from the two countries.

General Motors manufactured 22.3% of light vehicles in Mexico: it is the main automotive producer in the Mexican market

Around 90% of auto exports from both Mexico and Canada go to the U.S., according to the Mexican Automotive Manufacturers' Association (AMIA) and the Canadian Vehicle Manufacturers' Association. German automakers,