The Stigobike has some interesting features but still doesn't answer all the requirements for most customers.....
Weight....one article says 13kgs,another 17.5kgs,the latter is too heavy for a city commuter bike.
Battery....I cannot find a capacity,it is LifePo4,which is a strange choice because it has low energy density(heavy),it says up to 25 miles,you would need minimum 8 Ah to achieve that.
Terrain....I have never seem any video of the bike going up hills.
Pedals.....it doesn't have any so it's not an e-bike,it's a moped,it needs registering as a light moped and tax,insurance,helmet etc. no cycle track usage. It is the addition of working pedals to these bikes that make the design difficult,a throttle connected by wire to a hub motor is relatively easy to achieve,but pedals are needed to make it an e-bike and a commercial success.
Wheel size....12",our roads are so potholed these days that 12" wheels are,in my opinion,dangerous.
Rider size.....notice how all the videos show a small guy,that bike would look like a toy under my 6ft plus frame.
Price....when it came out it cost 3000 euros,it has now been reduced to 2000 euros,that is too expensive for a mass usage commuter bike,it needs to sell below 1000 euros.
Shame,because it has a good fold and some good ideas.
All my own opinions.
KudosDave