The saturation is a little bit too much, but generally they are pretty nice. You seem to have nailed panning pretty well.
Only thing that I might say is that the one where the Porsche GT2 RS is half obscured by tree doesn't really work. Panning through the foliage of trees does tend to work (at least it does at super-slow shutter speeds) but through trunks...not so much.
But a good set overall!