Such a mixture of factors. Car manufacturers only make new cars not used so have to try and anticipate the future buyers demographic/needs. There will always be a demand for used trads of all vintages. Future influences? Technical/legislative requirements, buying demographic, prices. Morgan has had to develop new models to stay afloat. Imaginei if they had frozen deveopment in time, pick a date; mid eighties, mid nineties? Morgan would not be here now.