Volkswagen 'concludes' CO2 emissions are not a problem
Internal checks reveal only minor deviations in a few models.
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Volkswagen scandal might force it to sell luxury brands
Bentley, Lamborghini and Ducati could be on the chopping block.
VW reportedly knew its fuel economy figures were wrong a year ago
Volkswagen may have known its fuel efficiency claims were bunk, not just its emissions.
