We've bought 4 tyres just to drive on them flat.
Here are one of the mounted on front right. Total length of movie 22.12 min.

The whole movie is shot on public roads where we could meet other people, though it was at 1 am in the morning. The complete drive was more than 60 minutes.

We started with it all filled up. Put a stone in the valvecap and let the air out slowly. Drove through a lot of areas with houses while the tyre went flat.
First stop a parkinglot for check, some short still pictures shows it's going down but not flat. Drove some more around the houses ... Show more