Another car that runs on fresh air. Answered
Here's another chap with a car that runs on compressed air.
He's got more potential than past attempts, though - F1 engineering background, large backer, neat trick for extending range.
The video and Previous BBC "airing"
Canadian news article
Critical article from Oil Drum (Australian energy site)
Oil Drum: part 2
Air Car site
EDIT (MORE REFERENCES)
Another BBC article
MDI Engineering site (they make the engines)
Tata Motors (who plan to build the car)