Tonton Streaming Speed Buggy (1973) S1E12 - The Incredible Changing Man

At a race in the United States and Mexico, the crew encounters Jerick who is able to grow and multiply due to a powerful potion that Jerick's former friend created. However, the former friend places the potion's recipe on a tape that Jerick steals, so he asks Speed Buggy to retrieve the tape and save the day.