And Pal has made it again.
Very good - Iīm really impressed!
It is indeed a Hawa Elektrokleinwagen, built in the 1920s by the Hannoversche Waggonfabrik AG.
Hawa vehicles were distributed by the GDA (Gemeinschaft Deutscher Automobilfabriken G.m.b.H) at that time.
It was a bunch of companies like NAG, Hansa-Lloyd, Brennabor and Hawa that formed this industrial conglomerate. Not one of that makes has survived WW II though...