Administrators for MG Rover, the crisis-torn car firm, are investigating the legality of its £67m ($128m) sale of Rover car designs to China.
Does SAIC really own the rights to the Rover 25 and 75?
Reports of the concerns of the administrators, PricewaterhouseCoopers (PwC), first surfaced last week.
But weekend press reports said PwC could now be debating whether to take the matter to court.
A PwC spokesman said: "All we've said is we have a team of lawyers checking that everything is right and in place."
Rights or wrongs?
The spokesman, Jon Bunn, would not be drawn on why PwC was investigating whether the sale of intellectual property rights to the Rover 25 and 75 to China was valid.
Shanghai Automotive Industry Corp (SAIC), which believes it now owns these rights, is planning to make cars based on the designs in China.
SAIC has already approached Rover component suppliers with a view to buying parts to build the Rover 75 in China, the Birmingham Chamber of Commerce and Industry said. But it added that it was unclear who owned the rights to the tooling of the 75.
The administrators are trying to find buyers for the MG Rover business, or parts of it, and it could be worth more if it still owned the rights to the designs for the Rover 25 and 75 models.