Where can I get the best deal for Jaguar Extended warranty?

I have 2013 xjl and a 2012 XF.
For the 2013 xjl, I purchased 6 year, 100k extended warranty for only $2500, when I bought the car new.
My XF was leased and I am considering buying it out. I would like to buy the warranty, before manufacturer's warrany expires.
Also, I am planning to buy a used 2011 Jaguar xjl and I would like to buy an extended warranty for that also.
What are the best options? Local dealer said that it would be in the $4k to $5k range for the 2011 - even though the 2011 would still be under actively covered warranty..
Seeking advice.