Yes, it does work, kind of
By moving files from the packs into pgr2 on your hd and modifing some of the ini's. I have all paris and long beach cars working, all long beach tracks working(only with weather set to sun.Rain,cloud and night cause a dirty disc error>
) and paris tracks selectable but crash with a spectacular 'pink-sky' texture lock up..
I used the info from a thread on here, it was a sticky but i dont see it anymore ?? mainly by sniperkilla and dos4gw, credit to those guys for that
just read that thread and follow what they did.All the files you need are in the content you downloaded with the installer.
Dont forget to clear your cache after uploading files/ini's (x,y and z). Hope this helps..