After tracking down the pic source and reading the article I'm not too excited.
VW 1-Liter tandem city car tipped for 2010 production - MotorAuthority - Car news, reviews, spy shots
Only 1000 units/yr means there is ZERO chance they will try to certify it for the US.
The new pic also shows a more conventional tire than the skinny LRR special on the prototype.