The value of Mercedes' involvement in Formula One is still the topic of debate within parent company Daimler, board member Helmut Lense insists.
Earlier this year, Lense was quoted as suggesting that Mercedes should be pulled out of the sport in favour of more worthy projects. Now, in the wake of fellow German carmaker BMW's decision to withdraw at the end of 2009, he reveals that uncertainty about the Mercedes engagement is still debated internally.
2009 Frankfurt Auto Show Photo Gallery
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