I am looking to see if any New England racers feel the need to use one of those forced air-cooling helmets? If so does it helps to keep the entire body cool? Or just keep your face cool? And if a cooling shirt would be a better investment.

I would guess that the “Cool Shirt” might do a better job at keeping the core cool. But would like to hear from people that have tried either(or both).
Or am I just being overly paranoid about the heat in the car and its not needed?

Thanks
Matt Bal