As a teenager and coming home from a movie I believe in a friends dads car we were aproching Port Sydney from the north.My friend Pete who was in the front of the car stated that there was lights slowly moving towards us as we were slowing to exit the highway to our left.I at the time being in the back seat said that they were probably lights over the cement plant and he was addiment that it was not. I remember looking in to the front and out the windsheild and seeing the 3 lights moving over us at the turnoff on the highway.WE were all excited and when the car stopped (still on the highway) we all got out and were in aw at something we could not understand. I remember yelling beem me up as a teenager would do i guess and after moment this triangle of lights --(with no noise) changed altitude and direction 3 times staying right overhead' It then started moving n to nw as we raced to get back in the car an crossed the lanes to follow it at 140 miles an hour as the speedometer said for about 2 mile and then left at the speed of light.