Garth Groff posted a link to the shapeways helium car in post # 153917 on 11/29/17.
Looked at it back then, price was lower, and I was hoping someone would comment on the quality of the print.
If as Tom says, none have been produced, wow.
3d printing of the components as a starting point may be the way to go for those that have enough info on these cars and
the drive to produce a kit. But a one piece printed car, that I would have to see first..