The document discusses the evolution of GST treatment regarding motor vehicle incentive payments, detailing the uncertainty prior to the KAP and AP group decision in 2008 and subsequent developments leading to clearer definitions of certain incentive categories. It outlines the current state of certainty offered by the ATO on five categories of payments and explores ongoing potential disputes around public rulings. Finally, it indicates likely future challenges related to LCT and the general compliance environment for taxpayers in the motor industry.