Managers at MG's Longbridge plant are understood to be considering plans to shut down car production lines until early 2010, according to the BBC.
With production of the special edition version of the MG TF is due to end in weeks, MG Motor UK Ltd said" "No final decision has been made regarding a temporary shutdown of our production facility".
It added: "If such a decision is taken we are likely to make a statement at that time confirming our intentions."
The company added that its Longbridge-based engineering and R&D facility is still working on future MG products, which "are being specifically developed for the UK and Western European markets".
MG Rover collapsed in 2005 with the loss of 6500 jobs.
In May 2007 its Chinese owners opened a new car production line at Longbridge as a ceremony marked the official reopening by Nanjing Automobile Corporation.
Shanghai Automotive has since taken over the Longbridge operation.