Ultimate rip-off: Paying to 'rustproof' a modern car

Modern cars just don't rust - and yet, despite recent consumer protection intervention, some companies still attempt to sell electronic corrosion protection devices. Sexed up with pseudo-science, they sound quite compelling (provided you never paid attention at school). Find out about the latest rust preventative 'miracle': the OBDOI, or Onboard Diagnostic Oxidation Interface... Time to wake up, ACCC.