Kevin
I now run a 2005 (Facelift) S-Type 2.5 petrol auto. I cannot help but agree about Nissans of the older generation. They were basically bullet proof. In my younger years (now 72) and until about sixty I ran such Nissans as 200sx (S12, S13, and S14), Primera eGT (SR20) and Skyline R33 and R34 GTR. Those were the days. Having said all of that I really do love my S-Type, even though it needs a lot more attention and costs a lot more to keep running.
Best Wishes and Regards, John