There aren’t a lot of all-wheel-drive convertibles on the market – but most of them come from German automakers. In fact nearly all of them come from the Volkswagen Group portfolio: the Audi A5, TT and R8, the Porsche 911, Bentley Continental GTC, Lamborghini Gallardo Spyder and Bugatti Veyron Grand Sport. But BMW is not about to let its arch rival keep that entire market – however small and specific it might be – all to itself. And to that end, it has just made the 2012 6 Series available with its xDrive all-wheel traction system, as evidenced by its appearance as an option on BMW USA’s website. Funk Flex Find Flex on Google +