BMW Chairman Bernd Pischetsrieder is annoyed that the sale of Rolls-Royce is dragging on so long.
'The process could have been handled a bit more professionally,' he said. 'Now the new car (Rolls' Silver Seraph) is launched in Geneva and the customer does not know what the future of the company will be.'
BMW, Ford, Volkswagen and Toyota are considered the most likely candidates to acquire Rolls from its owner, Vickers plc.
'The poker game is going on and on and you don't know how many aces are in the game,' said Pischetsrieder.
He said the delay 'helps neither Rolls, Vickers, nor any other company involved.'
If another company buys Rolls, Pischetsrieder said, two things will happen:
BMW will stop delivery of the V-12 engine and other parts. He said, 'I'm not supplying components to competitors.'
And BMW would consider building its own super-luxury car.
'It still has to be decided,' said Pischetsrieder, 'but you always need to have alternatives in life.'