"According to an unnamed "insider," Citroen is considering launching a separate brand just for eco-friendly vehicles. Earlier this year, the quirky French automaker announced a new high-end brand that would bring premium features to its existing vehicle platforms. Similarly, the first production vehicle under the green brand would echo the C-Cactus concept from the Frankfurt Motor Show in 2007 but be built atop the automaker's C4 platform."

More here:

http://www.autoblog.com/2009/03/13/c...een-sub-brand/