E280CDI Sport Est., CLK 200k Cab., VW T5 174, Citroen C8, and a 2CV!
Suspension bushes wear over here and tracking gets knocked out of alignment easily leading to uneven tyre wear - maybe it's less of an issue on your smoother French roads?
Check all the elctrics work as they should, although the facelift W203s are better than the early ones.