The Financial Times reports that Ford is expected to receive revised bids this week for its premium sportscar Aston Martin unit.
According to the FT, second round bidders are thought to include property tycoon Simon Halabi and British private equity group Doughty, Hanson and Co.
A consortium headed by Australian media mogul James Packer is expected to lodge a bid and Magna is also thought to be seriously interested.
The FT adds that rival buy-out groups that have dropped out include Alchemy, Texas Pacific Group and One Equity, the JP Morgan private equity business that counts Jac Nasser, former Ford chief executive, as a senior partner.
UBS is managing the sale and press reports speculate that Ford is looking for offers in the region of US$800m.