Found two videos of yesterday'd Test and Tune at ECR in snow.

For your viewing pleasure, video of car spinning in turn 4 and having trouble climbing out of 5.

https://www.youtube.com/watch?v=uR7FwbV2_As#t=27

And this is climbing up out of the canyon wide on turn 10 to avoid a car that's stuck on the line.

https://www.youtube.com/watch?v=uR7FwbV2_As