The disease starts the moment you swing the nose of the car around the first corner....the view down the bonnet, the feeling as you are sitting so far back and the slight flexing of the chassis is totally addictive!
All it took me was to sit a Morgan at the Sandown Park car show in the '80s. (I was there with my Midas). The salesman simply said "Why don't you sit in the car". He did not have to say anything else. I never thought I would be able to afford one.