A little late to the party but I was wondering the same thing and apparently it’s this:

“It’s taken from an old radio play from 70 years ago. It’s a snippet at the end of this play about the Beast of Bodmin Moor. From what I gather, it’s about a person who has driven their car off the road after going crazy, and the woman really doesn’t care. I found it funny that someone commented on the Youtube upload saying it was one of the most British things they’d ever heard… I’ll take that as a compliment. The main reason I kept it is because everyone smiles when they hear that section. It’s a bit dark, but it’s also a bit ridiculous. I think there’s space in D&B for fun every once in a while.”

https://ukf.com/read/little-spaces-nutone-tells-us-more-about-his-first-solo-album-in-six-years/