Hello again - and thanks for all the feedback.
I'm just short of 6'2" but long in the body. The car I tried had manual seats and the height (not tilt) setting was at its lowest. However, from what you all say, there may well be a combination of tilt and rake that would give me the headroom without being too far back from the windscreen.
What strikes me is that, as proper Alfa ownners, you are keen to forgive the car without question. Whatever its shortcomings may be, the fact that it's an Alfa over-rides them all. I'll be back in touch after I've had a test drive. By that time, it will probably be too late. I'll be smitten like you guys.
No-one ever seems to say: "I wish I'd never bought that Alfa," even if it cost a packet and was always breaking down.