This looks like a winner! :D

http://www.imdb.com/title/tt0780485/

Plot:
In the near future, gas prices are at an astronomical high. One man is determined to find an alternate fuel source. That alternate fuel source turns out to be blood...HUMAN BLOOD. | full synopsis (warning! may contain spoilers)
I like the disclaimer!!! You wouldn't want a quality film like "Blood Car" to be ruined by a plot spolier, lol!