I had one freak out moment during the weekend, when driving on the course I heard this horrible metallic screeching. Turn up the volume and see if you can hear it...
https://youtu.be/IsJWHyMb1BA
I first heard it around turn 5, 6, and 7, but then also heard it in the later turns. after much freaking out over possible wheel bearing failures, pending catastrophic engine destruction, etc.. I figured out that the metallic screeching was...
Wait for it...
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It was music being played over some sort of loudspeaker system....