Audi A6 passed through 14 countries on a single tank (photos) Nicolas T. June 16, 2015 Audi A6 passed through 14 countries on a single tank (photos)2015-06-27T10:37:11+00:00 AUTO No Comment Unmodified Audi A6 TDI ultra set a new Guinness world record, passing through 14 countries without having to refuel. The luxury sedan… Continue Reading ยป