I was the one in the black r34 who left early, my stomach couldn't handle the movement, even with the hydraulics turned off. Just to give you a comparison about how bad my motion sickness is, I threw up snorkling at Rottnest, and I can give you the tip, vomiting in the ocean is not pleasant.
My mate stayed, said he raced like shit, sorry I couldn't have stayed for longer, but 10 mins of racing made me feel seedy for 45 minutes, and the food made me feel worse. Not the end of the world though. Was good meeting you all.