The following video is part of our "Motley Fool Conversations" series, in which analyst John Reeves and advisor David Meier discuss topics across the investing world.

In this addition of the Motley Fool's Rising Stars series, Dave discusses why he's buying more shares of Zipcar for his portfolio. Dave feels strongly that the business is firing on all cylinders, even though the share price has taken a hit recently. That appears to be a perfect opportunity to buy shares in a company that possesses a transformational technology and talented management.

Every now and again, we come across a stock, like Zipcar, that has us so excited we can hardly contain our investing enthusiasm. We've uncovered one such pick with so much promise that we've dubbed it "The Motley Fool's Top Stock for 2012." We've created a special free report for investors to uncover this soon-to-be rock star. The report highlights a company that is revolutionizing commerce in Latin America, and you can get instant access to the name of this company by clicking here to download it now.