Car unions have stressed they were unhappy about the amount of money being paid to directors of Phoenix Venture Holdings, which owns MG Rover, at a meeting with them last week, the Daily Telegraph reported on Tuesday.

The newspaper said that the T&G and Amicus trades unions were meeting the directors for the second time after being dissatisfied by answers at an earlier meeting.

The unions were concerned by recent revelations in The Daily Telegraph that the directors have made millions for themselves while MG Rover has posted heavy losses.

For this second meeting, the newspaper said, the unions had asked a financial expert, former T&G finance director Peter Regnier, to look at Phoenix's books. Regnier was unavailable to comment to the Telegraph but the unions said in a statement that "serious concerns" about pay were raised.

They reportedly said: "The company gave detailed responses to questions regarding directors' remunerations, pensions and the financial structures of the business.

"While the trade unions have serious concerns regarding the generous level of payments awarded to directors, we accept that the important matter from here on in is to secure the viability and long-term future of the business.

"The trade unions received assurances from the company regarding the financial structure of the business."

Duncan Simpson, a national officer at Amicus, told the Daily Telegraph this included a pledge that the company's property assets will only ever be sold to benefit MG Rover.

Simpson reportedly added: "It is clear that we were not happy with everything that we were told but obviously what they have done is legal. We want them to move forward and invest in new models."

The Daily Telegraph said the meeting was attended by Phoenix director Peter Beale and a spokesman for Phoenix subsequently said: "While the unions expressed their concern over the levels of payments to the directors, it was accepted that the important matter was to focus on the business going forward."

The unions were particularly angered by a £13 million trust fund for the directors and their families, the Daily Telegraph added.