The XJ strikes me as an out of character car for you Andrew - at this moment anyway. Having read as you went through lots of V8 saloons, and then evolving to GT sports cars, leaving the V8s and petrol to go to an even bigger, diesel, saloon doesn't seem to fit.
I assume you would be replacing the RRS with it but right now you have two really great and really contrasting vehicles, both highly interesting but in different ways. I would have thought the RRS could actually last a while as some of it's functions and capabilities are particular to it and provided you wanted to benefit from those capabilities, then there would be little reason for you to get rid.
Just a thought...
