Volkswagen bosses have rejected shareholder demands for the company to publish findings of the massive probe into the “dieselgate” scandal, saying there is no final report.

Chairman Hans Dieter Poetsch told 3,000 investors at the German car giant’s annual meeting that he was prevented from releasing the results of the investigation, which VW has previously said 450 legal staff from law firm Jones Day were working on, for legal reasons.

"There is no written concluding report by Jones Day and there will not be one," said Mr Poetsch. "I ask for your understanding that VW, for legal reasons, is prevented from publishing such a final report."