Right now it's comparable to "light damage" on GT6. Understandable since they probably know the majority of rooms ran with no damage at all, and those who did ran on light usually. If you played GT6 online, you know "heavy damage" can be race "ruining" in 20-30 km/h difference impacts with other cars. I do hope they manage to ease players into an even "heavier", and more precise damage tier. That along fully functioning flags and longer races (20 laps or so) should be the ultimate experience to aim.