US carmakers rise as Trump to soften auto tariffs

** Shares of U.S. carmakers rise before the bell as President Donald Trump says he will reduce impact of auto tariffs

** General Motors GM.N up 1.3%, Ford Motors F.N gains 1.1%

** Officials said they would reduce impact of duties imposed on foreign parts in domestically manufactured cars and keep tariffs on cars made abroad from stacking up on other duties

** The move is expected to be made official on Tuesday

** YTD, as of last close, F gains 2.8%, GM falls 11.3% vs S&P 500 index's .SPX 8.9% decline