Hello SuperTuxKart. I'm coming to share a link on the Red Eclipse forum, found in this post.
The link in question is about Microsoft IllumiRoom, and it seems to feature two great FOSS games: Red Eclipse and SuperTuxKart!
The beginning (and most of the video) is Red Eclipse, but SuperTuxKart is also shortly shown from 0:49 to 0:50 (so only very shortly, but still there).
Here is the video in question:
youtu.be/re1EatGRV0w
This should be a good sign of the acceptance and quality of this game, so good work everyone involved!
(Edit: Whichever mod moved this: thanks! I confused SuperTux with SuperTuxKart. Silly me!)