BMW motorsport director Mario Theissen, who spearheaded the company's efforts as an engine supplier with Williams and then later with BMW Sauber, said he understood the reasons behind the withdrawal.
"Of course, we, the employees in Hinwil and Munich, would all have liked to continue this ambitious campaign and show that this season was just a hiccup following three successful years," he said. "But I can understand why this decision was made from a corporate perspective. We will now focus sharply on the remaining races and demonstrate our fighting spirit and put in a good result as we bid farewell to Formula One racing."
Dr. Klaus Draeger, member of the board who is responsible for development, said this season's poor results had played a part in the move to quit F1.
"It only took us three years to establish ourselves as a top team," he said. "Unfortunately, we were unable to meet expectations in the current season.
"Nevertheless, our ten years of Formula One experience have had a major impact on our development engineers. We have racing to thank for numerous technological innovations as well as the competitive spirit that drives us to develop mass-produced cars."
Draeger added that BMW had made no decisions about what would happen to the team.
"Since we only made this decision yesterday, we cannot provide any more precise information," he said. "We will develop and assess various scenarios and do our best to find a solution for the employees in Hinwil and the staff members involved in the Formula One project in Munich. We are aware of the responsibility we shoulder and will inform the staff as soon as we can make a clear statement."
Meanwhile, Toyota moved to quell speculation that it would withdraw from the sport too.
"Through cost reduction we will continue our Formula One activities," a spokesman told autosport.com. "Our situation remains unchanged."
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