FILE - In this Oct. 5, 2015 file photo the VW sign of Germany's car company Volkswagen is displayed at the building of a company's retailer in, Berlin, Germany. Diesels bought back by Volkswagen during its emissions-cheating scandal are trickling back into the marketplace after being brought up to emissions standards. Bargain hunters may be intrigued by the high fuel economy and refreshed warranties of these fun-to-drive used diesels. (AP Photo/Markus Schreiber, File)
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