Was trying to find something more about the project on the web and found some info about their partner, bartini, it is a russian start-up, that promises to launch a car in 2018, here you can read it, if you are interested in  https://www.rbth.com/science_and_tech/2017/07/20/back-to-the-future-flying-taxis-to-transport-muscovites-in-2018_807455