if there is anyone out there that love the improved phisics of the new patch z, but like the steering wheel, and interior mapping of the old patch y all you simply have to do is add your old patch y .vob file. i did it with the xrt to see if it would work and it did, so add patch y .vob file to xr, then download ur favorite xr patch y interior and chromowheel. i read the rules and did not see anything rong with this info.