Just reading NickCW's post has made me think a bit more about my experiences with Aero's. Right now I have 2, the GTN and the series 5. I think if I were having to choose again then if I wanted a manual car I would go GTN 1st choice or a series 3 and if it had to be an auto then I think the series 4.
I have my series 5 up for sale along with one of my '60's Lancia's. If my old series 4 ever comes back up for sale I am first in line for it. The GTN isn't going anywhere.
