You might want to take a look at the Citroën Ami. 6000 euro including VAT. Not sure which country you're in, but it seems more likely that something street legal in France would work for you.
I'm in Germany. Had a quick look at the Ami. The "problem" is the maximum speed of 45 km/h. As inner-city traffic normally is 50 km/h this will make you kind of a disturbance for other motorists and this will turn people down or keep them from buying this. Not to mention that overland traffic is normally 100 km/h and well... 45 is quite slower... Nevertheless, good idea, I like it.
https://www.citroen.com/en/Highlight/131/ami-100-electric-mo...