Im roasting in my car, ideas to cool it down.

I'm surprised that so many people have extolled the virtues of a headliner. That and white paint and a couple of header heat shields would be a way an inexpensive start. Although I have the money to do a Parker pump/new helmet set up and the cooling shirt set up but I'd rather spend that on other stuff. Thank you all and I agree night racing is way cooler
I think you will be surprised what the polar cap treatment will do. We got a metal roof on the house a few years ago. Yup. I got it in white. I can see the difference in the electric bill now. It helps. My 75 F250 is white with a white headliner and still with the factory insulation. It's WAY cooler than our red 2004 Escape when we get in each going somewhere. It's a huge difference in temperature. When I finally paint Vixen, she'll get the polar cap treatment too.