2010 BMW Z4 Coupe-ConvertibleA member of the Zpost bimmer forums has managed to ’scoop’ the second-generation 2010 BMW Z4 without a single trace of camouflage ahead of the roadster’s official premiere at the Detroit Auto Show in January - though BMW is expected to release the fist photos and details in mid-December. According to the site, the photograph was taken at a BMW dealership during the