I was browsing through ebay for a gear knob for my VS and i come across a valuable piece of information which has answered a few of my wandering thoughts and mat also answer yours. "Will fit most automatic cars... but please check that you don't have an overdrive button on the gear shift lever. Also, this gear knob will not fit cars that utilise a lift button (some cars do not push down to change gear, but lift up instead, eg VR, VS commodore).. This was for a chrome gear knob with a big chrome button on the top. Thought it may come in handy for some one.