(FILES) In this file photo taken on March 27, 2014, German Chancellor Angela Merkel holds a gift, a model Volkswagen oldtimer coach, during an election campaign rally in Munich, southern Germany. - Chancellor Angela Merkel heaped pressure on auto giants to pick up the full bill for any refits of older polluting diesel vehicles, as key negotiations got underway on September 28, 2018 on the potentially politically explosive issue. (Photo by Christof STACHE / AFP)