Hey, they are out there already!  Eurovan, Combi, whatever,images are
on the WWW and almost all models are available in Syncro versions. 

The VW Belgium site has a nice line drawing summary at:
http://www.vw.be/vvu/utilfr/index.html which then leads you to
specific models.

At no extra cost, VW Belgium has an imaginative image map at:
http://www.vw.be/net2/francais/index.htm, move all the
way to the right and check out the time machine.

As an added bonus, check out the Sharan Syncros- Gl and Carat
versions at: http://www.oeamtc.co.at/oeamtc/autokost/welcome.htm

Have fun!

Tom F.