Thanks for the comments everyone.
Ricey... I know what you mean about not clicking with a car ...that has happened to me several times with what would be described as "highly rated" cars, that I just didn't get any feel for. For some people the XK8 would also be too soft...and would take better to and XKR.
With this one, I think it helped that I had not really considered them at all - I would just go "oh yeah it's an XK8". Also with some of the trim combinations I felt that the inside can look old-fashioned. My co-car-sharing mate, however, has really liked them for years. So I went into it with no real expectations - but have now really taken to it. Partly it's because it's the right car for me at the right time. I don't think I had noticed how good looking they were until now.