i would guess with the new F type they might phase the XK range out big coupes arent selling as well as 2 seaters, and when the f type does what the XK does, i fear the XK may get shelved. yes it has 4 seats but 2 of them are useless (for seats, good for storage). the XK is getting on a bit now, been in production for nearly 30 years now and so has the engine in it. the F type is the first new engine from jag in a long time. would i want one over a porsche 911.....no i'd want both i like them both, both are good cars,
and with reference to 370z's and ferraris. nissan 370Z is to Jaguar F type. what Jaguar F type is to Ferrari california