Flying car stocks could be the next big moneymaker for investors. We already know the flying car market could be worth about $215.5 billion by 2025, according to Allied Market Research. By 2035, it could be worth well over$3.8 billion. And by 2040, we could be looking at a massive $1.5 trillion market, even$2.9 trillion, according to Morgan Stanley. In fact, the firm notes, “Flying cars could initially gain market share from cars on the road, planes and public transportation. However, it could also open u ...