Vid looks real good, and very nice car
Couple of observations, I hope you don't mind.
1: if you are looking out to the road on a sunny day you may want the metering for light to be on the centre so the outside is visible and the inside is dark, in your video the outside looks washed out sometimes in bright sunshine. If the metering is set on a wide setting it may be trying to balance the inside darkness to outside light, and this can impact on the image outside.
2: The camera position looks very high and makes it hard to see "down the road" or distance on the camera, if the track has elevation this will make it even harder to see what is going on.
Love the quality of the video and editing though, looks superb.
Video in my sig below shows the camera set to the seat headrest points,
https://www.flickr.com/photos/emmber/29771356286/in/album-72157674033006166/Not better just a different angle giving more view out the window. The metering on mine was set to wide, and not the centre as I suggested above, but this is because it was a dark overcast day.
Good luck with your track day, sure you will love it...