Workers at car giant Vauxhall told of their fears for the future today as they were warned it could be two months before they know if their jobs are safe.

Thousands of employees returning to work at the firm’s giant plant in Ellesmere Port after a week-long shutdown spoke of their concerns for the future of the motor giant – despite business secretary Lord Mandelson’s assurances from GM Europe Vauxhall production would remain in the UK.

Vauxhall parent General Motors is set to file for Chapter 11 bankruptcy protection today in the largest move of its kind in US industrial history.

GM - the biggest car manufacturer in the world until last year - will file for bankruptcy in the US courts as it seeks to restructure its stricken operations.

Lord Mandelson assured workers again today he Government has been given a commitment about production continuing in the UK by Canadian car parts maker Magna International, which has signed a memorandum of understanding to buy the Vauxhall and Opel brands.

But the minister said the prospective buyers will now study Vauxhall’s books in a process of due diligence which he said could take up to two months.

Lord Mandelson said: "I understand the fears and uncertainty of Vauxhall’s workforce but I am afraid we have to be patient."

Lord Mandelson said he will be holding more talks with Magna and pledged he Government was prepared to underwrite any future restructuring.