I'm surprised they didn't include an internal combustion engine in it to charge the battery. That's the solution for the terrafugia tf-x. https://www.terrafugi

I'm surprised they didn't include an internal combustion engine in it to charge the battery. That's the solution for the terrafugia tf-x. https://www.terrafugia.com/tf-x/ https://www.terrafugia.com/tf-x/