John Elkann - the heir to Italy's Fiat, Ferrari and Alfa Romeo empires, a director of Rupert Murdoch's News Corp, and one of the world's richest men - has been dragged into the legal dispute between Fiat Chrysler Australia and former chief executive Clyde Campbell . Mr Campbell has named Mr Elkann, one of the most powerful men in the global automotive industry, as one of the people who gave him carte blanche to lift sales in Australia.