I saw it on Amazon.com once about a month ago, don't know if they still have it, but it was being sold through Amazon.com with free shipping on orders of $25 or more. I don't have time to look for the link right now, I'm sure it was the Euro formula b/c I remember thinking about how I had never seen it for sale in the US before, and thought it was funny that of all places it was available on Amazon w/ the free shipping option. If I remember correctly, it was about $7 a quart or so
Oil store sells PP Euro 5w-40 grade for $32/6 quarts plus shipping. I have never seen any PP Euro in local stores.
EDIT: Nevermind, it seems to be out of stock "DUE TO A FORMULATION CHANGE", whatever that means.