Volkswagen is the world's largest carmaker.<br />Business Insider reports the company returned to profit in the third quarter.<br />This is thanks to surging demand for luxury cars such as Porsche and Audi in western Europe and China.<br />VW's chief financial officer, Frank Witter, warned that "the coronavirus remains a central problem."<br />VW said it's full-year 2020 profit would be "severely lower" than in 2019.<br />The profits would still be in "positive territory" after a second-quarter loss of 1.7 billion euros ($1.99 billion).<br />A series of cost-cutting measures launched earlier this year helped VW's performance during the third quarter.