(Reuters) - European shares started the week on a strong footing on Monday, powered by gains in shares of automakers and miners and signs of a warm tone to U.S.-China trade talks over the weekend. The pan-European STOXX 600 index rose 0.5%, touching its highest level since January 2018. The United States and China late on Friday said they had made progress in talks aimed at defusing a nearly 16-month-long trade war that has harmed the global economy, and U.S. officials said a deal could be..