Large white circle flew over Long Beach at a low elevation.I was driving south on the 605 freeway in Long Beach CA when a large white circle appeared out of no where, flew horizontally across the sky at a tremendous speed for 1 second then vanish. It had no tail and seemed to fly at the same elevation that police helicopters fly at. The object looked to be about 2 centimeters in diameter from where I was.I know there was a meteor shower that night but this didn’t look like the typical meteor we see in Southern California. Usually meteors are tiny dots flying way up in the sky with a tail dragging behind it. This was a large light with no tail flying not so high up in our airspace.I wasn’t the only person to see it. There were 8 cars around me that all hit the brakes at the same time as me when I saw it. I thought maybe it was a plane or a jet since there is an airport and an air force base near by but I’ve never seen a commercial jet fly so fast or a military jet vanish.