A guy (a cop?, or a race driver?, or a criminal?) must transport a virus from a lab (or to a lab?) by car. Post apocalyptic scenery, desert. The car looks like a race car or rally car, adapted to the desert and post apocalyptic world. I think time is a factor, it's a race against time, bad guys (or cops?) are chasing our virus transporter guy, if I remember correctly. I am not sure, but there might be more than one virus containers involved. I think the virus is stolen, either our guy stole it, or he stole it back from the bad guys? I don't remember.
It's an Australian movie, probably set in Australia as well, in a post apocalyptic future. It was made in the 1980s. The guy looks like Richard Roxburgh (http://www.imdb.com/name/nm0746896/
from Mission: Impossible II (http://www.imdb.com/title/tt0120755/
And no, the movie in question is not Mad Max.:)
Please help me find this movie.