I was fortunate to be able to attend the Honda Indy 2019 where I had an opportunity to practice a LOT of panning. It’s easy to take a snapshot of a car on the racetrack if you use a very fast shutter speed but the car will look like it’s parked - you don’t see motion in the image. By lowering the shutter speed considerably and trying to more your camera along at the same speed of the automobile, you almost freeze the body of the car but the tires and the background reflect blur / motion.
