We tried helmets on a Starlite Rally to Las Vegas one November. The temperatures were in the teens. Surprisingly, even with the inch of insulation, the helmets were not that warm. Ski caps are better and lighter.
I took my older son to an SCCA autocross at El Toro after he got his car (Nissan Sentra). He was amazed how far you could push the car and how difficult it was to drive at the limit.
In California we don't have idiots, we have crazy people! I'm always telling him to lookout for crazy people and he tells me about the stuff he sees. He's getting a little tired of my favorite joke though. You know, " If you see a car in California with the turn signal on, It means that it was on when they bought the car"!
Paul