Talk about a convertible bike, and it doesn't appear to be electric. While this has a FB page and videos, I've not found a definitive website for this bike. "Eco Bike" turns up a variety of choices on Google, none of which look like this video. I don't have time to do an exhaustive search, but the concept looks interesting.

https://www.facebook.com/ecobicycle/...5463299811673/