I would just call velorution since they are the local rep.
they have a long history (see link) with many versions, i have ridden one extensively which is a Copenhagen version, love it. The laid back position is very relaxing, however they arent as efficient at climbing because of that, but for a town bike, awesome. What attracts me is the combination of ancient and modern on that one, specially in stealth black. So, no-one picked up a flyer with web address at all?
http://www.kemper-velo.de/ i think this was the stall that had it on display
I would just call velorution since they are the local rep.