A banner reads "Who saves Opel?" in front of the Opel car factory in Bochum, Germany, Wednesday, May 27, 2009. General Motors have moved to package together the assets of its European Opel and Vauxhall car brands for possible new ownership ahead of top-level meetings with bidders and government officials in Berlin. Opel's supervisory board approved a GM Europe plan to pool its European plants, sales operations, patents and other assets, excluding Sweden's Saab unit, debt-free under German-based Adam Opel GmbH.