Chipotle Mexican Grill (NYSE:CMG) bears have done it again. Hedge fund manager Jeffrey Gundlach has pointed out the potential threat posed to the burrito maker by low-cost food trucks -- specifically, taco trucks. Aside from the supposedly low barrier of entry, he believes the company's P/E is too high for what you get. In this video, Fool contributor Steve Heller sits down with Erin Miller to discuss why Chipotle is not just your average taco truck and why it will continue winning against the bigger fast-food names.