Microcab seen here at Frankfurt Motor Show on Mahle booth. Mahle have developed their MEET (Mahle Energy Efficient Transport) project based on the Microcab platform.
More information can be found on the Microcab and Mahle websites :
http://www.meet.mahle.com/
http://www.microcab.co.uk/microcab-at-frankfurt-iaa-2017/