I saw this one a while back and I spent years trying to find it again because i thought the title was one way drive in. Anyhow, this is most entertaining and utterly stupid aussie post apocalyptic nightmare flick in which the government decides to control rambunctious teenagers by making sure they never leave the local drive in. What I remember most was the obsession the proagonist had with preserving the origoinality of his fathers 1956 Chevy rather than preserving his hide .