I;ve been talking to a lot of people about this recently and the number of "hits" -i.e. where someone *really got it* has been quite amazing. I'm beginning to think this might actually be possible now.
Anyhow this page is going to try and concentrate on the concept, with useful links to related stuff aas well as progress updates.
windows and linux game building platform - worth looking at by the demos
Racer.nl free (open source?) car sim for windows and linux.
Prototype in Blender using BGE:
http://www.youtube.com/watch?v=qddjbDYSVMo
"official" blog..kinda moved here since it's been just me recently.
http://projectcgz.blogspot.com/