Paint Coatings

I've been looking at various paint coatings as I'd like to protect my car from the sun/UV/heat this summer. I've been told to look at CQuartz UK, Sonus Ion and Collonite coatings. Even Wolfgang and Sonax have coatings as well. CQuartz may be ther larger name in this grouping, but I've read it can be very difficult to manage the curing/removal time, while others are easy on - easy off.

For a DIY, which coating is recommended or ease of install with the best results?

Paint Coatings