I wonder how much will it weight; do the designers have in their mind to fit it into the category A (motorcycle) restrictions? It has to be under 400kg by Russian version of the law, and I believe, more or less same everywhere?

And what engine will it have? 84 MPG is very well acihevable in the smaller maxi-scooter category, e.g. Honda's PCX150 сlaims 100 MPG [1] for it, and it goes about 70 mph tops. Improving fairing is known to have a noticeable effect on mileage, on scooters, so I believe a car could do better.

[1] http://powersports.honda.com/2016/pcx/specifications.aspx