Hmm, interesting. I'm not sure if I can tell the difference, but I'm say most people who track their daily drivers here use just any helmet that's laying around, which usually is for motorcycling. I've never had any problems getting to the track with the helmet I had anyway. And now that you mention it I do remember one of my friends having a more suitable looking one, but then again he has a track car as well, so I'm guessing his gear is race series specification.Motorcycle helmets are terrible track day helmets and are counter-protective in most cases. Most sanctioning bodies won't let you use motorcycle helmets.