As I've just removed the locking nuts on my C5, I needed 4 of the chromed caps to fit over the replacement nuts. Cheapest I could find them was £7.50 for 4 on fleabay. Then I looked on AliExpress and found these -
http://www.aliexpress.com/item/Cap-Whee ... 86544.html.....under £3.50 for 20, including delivery.
I was a bit sceptical, thinking they'd be like shiny tissue paper, but no...they're identical to the originals. I suppose Citroen/Peugeot don't have their own factory making wheelnut caps!
Pete
Nocto Diuque Venamur.