After its successful debut of Coconut M&M's, Mars has unveiled Twix Coconut, just in time for warmer weather. Much like the lethal combo of chocolate and caramel, in my mind, the tropical fruit and the Summer season go hand in hand. On my last trip to the drugstore, I couldn't resist picking up one of the new candy bars as a grab-and-go treat. But does it live up to its limited-edition hype? To find out the verdict, read on.