Many people have PM'd me about how I got a buyout from Chrysler...

I did everything by educating myself about the CA lemon law (via the internet). No attorneys. There is a postcard in your owner's manual that you can send to Chrysler telling them about your difficulties. I believe that's how I finally got a call back.

3 ways you can qualify for the (CA) Lemon Law:
1) In the shop for a total of 30 or more days for the same problem.
2) They tried to fix the same problem 4 times & failed.
3) Tried to fix the same problem 2 times & failed & the problem could cause a fatality.
Either of these must be within the first 18 months of initial delivery.

If you fall into any of these categories, you're in luck. They have to work with you. If your not in these categories yet, keep taking your car back until you are.

I qualified under the first.

Tell your Service Manager you want to talk to their Zone Manager. Explain your problem to him. Kill him with kindness. I found that every call that guy gets is from a disgruntled owner. Being calm may get you farther (at first). Again, I think the postcard did more for me than the Zone Manager.

Alas, they wanted to:
1) Give me a replacement car (any Chrysler/Jeep/Dodge product. I would pay or get credited the difference of the MSRP's between the cars. Example: if I wanted a roadster now, I would pay the +$4,000 difference of the roadster's MSRP vs. my coupe's MSRP) or,
2) keep my car & Chrysler would give me 3 car payments $$$.

I wanted the same car I had. By this time, my '04 replacement would be an '05 (good deal I thought). The dealer did a 500 mile radius search with no luck finding my exact car. Chrysler said I could order one. By now this would be an '06 (better deal). 2 months went by & I got a call saying they aren't making the '06's yet because there are too many '05's still around.
Now Chrysler said I could either take something off of a lot, or they would give me my money back.
Since the value of the XF has plummeted, I took the $$$.

I bought a used SRT with 80+ miles for $34,500.

Caveat: This happened in CA. Laws in your state may vary.