Let me give some perspective on old/limited production cars, german cars in particular, and I do consider the Xfire a German car in many respects.

I owned a 73 BMW for many years and getting certain parts was always a challenge, but never impossible.

I would call it more of a frustration, as with anything old, or limited in production, it's a matter of time and money. But usually anything could be had, it was just a case of networking for the part, living with the angst, and paying an (appropriate) price.

While driving my '73 BMW in the dead of August, in stop and go traffic, the thermal clutch on the radiator fan fails, and the car overheats big time (yea it had a thermal clutch in '73).

Next day I'm shooting white smoke out of the exhaust, with all indications that the aluminum block had cracked.

For over a month, me and my mechanic searched all over America for a rebuilt '73 3.0 CSI block, with absolutely no luck.

Eventually we find one, but it's in Germany, and it ain't a pretty picture to purchase and ship.

Bottom line, anything can be had, it's just a matter of time and money (sad to say)...