I think that you will find that most Citroëns had independent suspension all round; if they hit a pothole, the suspension on that wheel extended and contracted to absorb the shock; in the case of a flat tyre, the suspension lowered that wheel to keep the car level - I could be wrong but I don't think so.
Although in theory you can drive on a flat tyre, the system is not designed for that and it is not supposed to be used that way. A French President did famously do so after an assiniation attempt but you'd risk damage to the car and the wheel.
You can however jack it up without a jack by raising the car to full, sliding an axle stand under it and then lowering it

Is it, I thought that Peugeot had dumped it. On what car is it still used?
Citroen C5 and C6.
So you aren't (or weren't) completely lacking in discernment then![]()
