Car covers and Effectiveness

[orange4boy]

I used aluminized plastic honeycomb radiant barrier material

Is that the aerospace equivalent to thermal bubble wrap or are you just more verbose than I?

[Christ]

Do Landau tops attribute to solar heating, or insulate against it?

They're white or red, usually, so that should help a bit, I guess, but I wonder if it's just the fabric isolating direct sunlight from the metal? It's kind of like shading the roof, isn't it?