Growth stocks come with a lot of ups and downs, but if you can stomach the volatility, they can pay off handsomely in the long run. One stock I've had my eye on for a while has seen its price fall 95% from its peak in late 2020. It was once the second most valuable car company in America, behind only Tesla. That's because it's a leading developer of a technology that could completely change the $3 trillion auto industry. The company is called QuantumScape (QS 43.08%). And despite the stock's fall from grace ...