I'm not sure about the practibility of this car...bike... vehicle... but I'm going to call it an alpha build and hope it inspires a new concept in the future of economical car designs.
At this stage, the car portion looks more like a go-cart and I'm not sure I would want to see that thing on the highway. However I immediately thought of those countries where electric bikes are commonplace and how they could use something like this as two vehicles on a daily basis and as one car when taking the whole family out, for example.
Plus since motorcycles can seat two people easily, it shouldn't be hard to make a model that can fit up to four people when combined. So, *crosses fingers for the future*