If I had to buy a jaguar, I'd get the XKE from the 60's. They have a bit of style, and drive very well on the track. And from what I've heard, Jeremy Clarkson masterbates to them frequently.
They have some interesting brass engines on a few of those things. A fella I knew in Jasper, Indiana used to rebuild them for fun. They were stunning to look at inside and out. A whole 'nother level of quality that I'd never seen before. But alas, I was too young to contemplate buying and maintaining it.