Car. I must admit I don’t hear other VFR pilots popping up and making self announcements when an IFR aircraft could be close ,on these flights.
Could be primarily because the IFR aircraft don’t give position reports as they are all under good radar coverage
What a complete joke of a system! It worked a bit in the old flight service days because everyone had to give full position reports as FS officers were not allowed to look at a radar screen.
It is pathetic what some of you are trying to justify. All about resistance to change!