Westport Innovations is the stock to own, "Mad Money's" Jim Cramer said Monday.
The Vancouver, Canada-based company has a host of joint ventures with some of the biggest engine makers around. It's also developing engines that run on natural gas.
To learn how the nat gas-powered vehicles story is playing out, Cramer chatted with Westport Innovations CEO David Demers. Watch the video to see the full conversation.
Call Cramer: 1-800-743-CNBC
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