Interesting! I saw an advert for this bike today, seems Yamaha is marketing it as a commuter in traffic... Never been a driewiel fan but it does look nice!
https://www.yamaha-motor.eu/eu/products/scooters/new-mobility/tricity.aspx#gallery=image%7Cimage=undefined
https://www.yamaha-motor.eu/eu/products/scooters/new-mobility/tricity.aspx#gallery=image%7Cimage=undefined