no way to find out were or really when they were made. gt dyno after the bankrupt didn't keep records or never released records to the public. yours were made after the first bankrupt but before the second bankrupt. the purple was 2002 or 2003 and your black one (black cherry in the sun) was 2001 to 2004 only the prototype was made in the usa. 2004 to 2007 they were called kustom kruiser. if the black one has 2 serial numbers then it was 2003 or 4. if it starts with a w then it was late 1998 or 1999. other then that thats about the only info on those bikes.