Toronto, Aug 26 - Canada's auto-part maker Magna may have to wait yet another month to lay its hands on Opel.

Reports here say General Motors will not decide the fate of the loss-making Opel division until the start of the Frankfurt Auto Show next month. The world's premier auto show begins Sep 17.

Opel is likely to unveil two new models - a new version of Opel Astra with low-emission engine and a new Opel Ampera - at the auto show. The latter will be an electric car on the lines of the Chevrolet Volt.

Canada's Magna and the Savings Bank of the Russian Federation (called Sberbank) have jointly submitted a $775-mmilon bid for a 55 percent stake in Opel. Brussels-based financial investor RHJ International is the rival bidder.

German-based Opel was put under a trust when GM filed for bankruptcy protection in June and later got $50 billion from US and Canadian government to emerge from bankruptcy last month. GM, which now has a 35 per cent stake in Opel, wants to sell this division as part of its restructuring.