I can't explain it other than the understanding at launch time that only 100 would ever be produced but this has been called into question on here at times by current owners so quite where the truth lies I don't know. My understanding was that the Swiss banker that backed the project bought 2 of them and dictated the numbers to protect his interest but that is not hard fact just the rumour at the time.

Also I don't know how many of the other models you mention have been produced which has to be relevant to current values as there seems to be great disparities among this bunch.

Perhaps an Aeromax expert will step up and put us in the know..

2009 4/4 Sport Henrietta
1999 Indigo Blue +8
2009 4/4 Sport Green prev
1993 Con Green +8 prev