Entrepreneur Michihiko Iwamoto has realized a lifelong dream: to own a DeLorean time machine. And there’s no better time to do so: October 21, 2015, is the date to which Doc and Marty travel in “Back to the Future II.” Iwamoto’s, recently shipped to Japan, has been fitted with key parts: a speedometer (set to 88 mph), a flux capacitor and a Mr. Fusion, which converts trash into a renewable energy source. The movie, which Iwamoto, now 51, first watched when he was 21, has made a lasting impression. “I totally believed that in the future, there would be a car that runs on garbage,” Iwamoto said of the scene in which Marty and Doc fly in a trash-fueled DeLorean in “Back to the Future II.” “But years went by, and that didn’t happen. So I thought I’d develop it.” In 2007, Iwamoto started JEPLAN, short for Japan Environment Planning company. Its focus is developing recycling technologies, and one of its current projects, which took five years to produce, is to create bioethanol from old clothing. Simply put, cotton fibers are broken down during a fermentation process and turned into energy. The DeLorean that Iwamoto purchased runs in part on this fuel. Iwamoto has taken the time machine to shopping malls across Japan to raise awareness and to collect donations of old T-shirts and jeans in order to create fuel. “I wish to promote a recycling-orientated society,” he said. “But more than anything, I am very happy that I could relive the scene of the movie that I saw 30 years ago.”