Can anyone post a link showing the evolution of the XK from 97-present? What things have changed over the years? Thanks.

 

I can't post a link, but a couple of books about the development and improvements may help. Also the following web site has specs about many of the different years
http://www.automobile-catalog.com/mo...r/xk_x100.html
The following books may help you
You & Your Jaguar XK8, Nigel Thorley
Jaguar XK8 and XKR, John Blunsden
Jaguar XK8 The Authorized Biography, Philip Porter
Jaguar XK8 & XKR performance Portfolio, Brooklands Books
I included the last one it's made up of New Model Reports plus road and comparison tests from many automotive journalists.