I'm thinking that the height issue is all relative. It probably depends on how much you want the car, as to how much you'll tolerate a little cramped space! Give and Take!

 

Spoken like a true "Roadster Owner".LOL In all honesty, If I was just an inch or two taller, I don't think I would ever be able to get comfortable enough to spend very long in a XF coupe. And that would be ashamed, because every trip in my '04, is always over too quickly.
If the "bulk head" behind the seats was placed just 2 or 3 inches further back, it would allow the seat back to be tilted just enough to give a little more extra head room.
As it is now, I've had to change my usual driving position to a more upright position when ever I'm behind the wheel of our Crossfire. Surprisingly, it turns out that my new altered position has alleviated the chronic neck pain that I usually suffer when ever I drive for extended lengths of time. So now I've changed the seat backs in all my other vehicles to be more upright also.
Who would have guessed that the Crossfire's "intimate cockpit" would turn out to be so therapeutic for me.