The bank last year achieved an after-tax profit of 151 million euros, slightly higher than the 149-million-euro profit a year earlier.
"Our 2004 result will be similar to 2003," says Gebhard Ratz, managing director of the Opel subsidiary.
The automotive bank will likely publish its full-year financial report at the end of next May.
Ratz says that dealers finance around 97 percent of all their cars through the bank. That is unchanged from 2003. "This is a record for the industry when it comes to loyalty," Ratz says.
GMAC bank has also been Daewoo's exclusive bank since the end of September.
Ratz plans to expand Daewoo's leasing business. Daewoo models will be sold under the name of Chevrolet in Europe beginning in 2005.
"Only 25 percent of Daewoos are lease cars," says Ratz. "With Opel it is more than twice that number."
GMAC bank also will become the exclusive bank for the Swedish GM subsidiary Saab beginning Jan. 1.
Ratz says that business with brands that do not belong to the GM group represents less than 1 percent of sales.