Car saler Sabri Carkan and his wife Saliha stand behind a Daimler DB 18 Drophead Coupe in their showroom in Enger, Germany, Monday, April 29, 2013. Experts believe the vintage Daimler DB 18 Drophead Coupe is the only one of its kind left. Only eight of these cars were produced since 1939. The rare car was used by Britain’s wartime leader Winston Churchill between 1944 and 1949 is being sold on auction site eBay.