I have people in china trying to sell products similar to this all the time. Heres one below.
This is what they call a folding e bike Model elegant. They say you can fold it up and hop on the subway with it under your arm. I have specs somewhere? I don't believe the the top speeds are as fast as yours assuming those are MPH's. I always had a interest in these but am afraid to take on a large load. This is just meant as a heads up, Not a in your face so please don't read this the wrong way.
I also wonder. How heavy are the batteries? How long does it last per charge as well as how long to charge? Also, Do you ever have to pedal? If so, hows the gearing?