Invention or Innovation? - 300 MPG Car

Engadget has an article on a 300 MPG car that Aptera is now beginning to accept pre-orders for. Apparently, they intend to deliver it in twelve months.

I would contend that this automobile is an invention not an innovation, because there are already hybrid cars in the marketplace and this automobile will likely prove more useful than valuable. I believe it will be a niche player rather than a truly transformational product introduction, but I guess we will see. Toyota and other hybrid manufactures will be introducing plug-in varieties in the next few years along with better capacity batteries, improving MPG on both fronts.

Invention or innovation? Niche or mass acceptance? What do you think?