I am having so much fun painting in my car/studio! Clamping the panel holder to the steering wheel worked out great. I don't really like the paper palette so plan to get a piece of plastic cut to fit the box.
I made quite a few mistakes in drawing and value but still, I'm happy and so excited that I can paint outside in winter. It topped out at 47* when I was finished and I was nice and warm the whole time.