hab einen der besagten sondermodelle in amerika gefunden mit info und preisvorstellung 
ist glaub ich keiner der hier angegebenen aber doch interessant 
http://www.minimania.com/web/id/5153/ClassDetail.cfm
am interessantesten ist wohl der erste absatz :
This is it, The car to own. There are only 50 minis from under 25 years old that are legally allowed to enter the USA. This is one, Number 37 of 50. The car is a “Y” Registration (March 2001). Webasto Sunroof, Black and Silver full leather interior, 13X6 sportpack wheels Alloy Dash, Cooper Sport Furniture, and badging. Again one of the Last 50 John Cooper Authorized S Works car NOT a car that was brought to John Cooper Garages and converted; this car was sold new as a John Cooper Garages "S Works" last 50. They were advertised on the back cover of mini magazines for many months throughout the run. These last 50 cars are the only ones listed under Department of Transportation as allowed to be imported to the USA under "show and display" rules. Car would be perfect for the ultimate mini collection or a museum.