In Chamber of Secrets, we know that the bewitched car of Mr. Weasley helped Harry and Ron in the forest.
However, after that I couldn't find any information about that car.
What happened to it? Did it go back to the Weasleys or not?
I am looking for a canon answer if it's available.
In 1999, shortly after the publication of Prisoner of Azkaban in the US, JK Rowling was asked about the Ford Anglia:
Will we ever hear from Mr. Weasley's car again?
Yes, you will hear from Mr. Weasley's car again, but yet again, I'm not telling you how.
This never came to pass – the car is not mentioned again in the books. I’m also unaware of any interviews or Pottermore releases that discuss the car’s fate.
When the car picks up Harry and Ron in the Forbidden Forest, Ron observes that it seems to have acclimatised to Forest living:
“It’s been here all the time!” said Ron delightedly, walking around the car. “Look at it. The forest’s turned it wild….”
and the last we see of it is when it returns to the Forest:
Harry gave the car a grateful pat as it reversed back into the forest and disappeared from view.
Lacking further information, I’d assume it’s still there. Given that it’s gone wild, I think it’s unlikely it would return to the Weasleys. It probably can’t find its way home, and if it did, it would return to being trapped and immobile in their garage. Now it has a taste of freedom, why would it go back?
I assume the plotline Rowling had in mind involved somebody returning to the Forest and finding the car, and I have a few guesses:
but without confirmation from JK Rowling, I don’t think there’s much else we can say.
it can today be found in the main entrance hall of "The Harry Potter experience" at Leavesdon in North Hertfordshire, where it hangs precariously in a corner, 18ft above the ground.
J. K. Rowling said in 1999 that it was supposed to reappear in a future book, but eventually discarded the idea. As far as I know, we're not told what happens to the car.
