Next Wednesday is "Back to the Future" Day and to celebrate, Toyota has reunited stars Michael J. Fox and Christopher Lloyd for a commercial for their new car brand, the Mirai, a hydrogen fuel cell vehicle. The vehicle has been the subject of an ongoing digital campaign called “Fueled by Everything,” will go on sale on October 21, 2015, the date the time travelers visited in the second movie.

In a new teaser, the stars meet at a diner to discuss which futuristic inventions from Back to the Future II wound up happening in real life. The 45-second spot teases a five-minute clip that Toyota will debut on October 21 in honor of Back to the Future day.

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