As requested (I'm a lazy photographer so really not much pictures...)
It was a real mixture of cars on track, GT4, GT4 Clubsport, GT3, GT3RS, 911 RSR , Formula Mazda, Some classic muscle cars, Nissan GT-R etc.
Fun to watch.
Here som short videos
Grant
https://www.youtube.com/watch?v=2IPXXQIeDCw
Signes
https://www.youtube.com/watch?v=wgs4DY4ExTs
Signes, Grant, Tim
No the most common track car:
I found this really cool mobile coffee shop this morning, parked close to Union Station :-)