How can I best preserve the interior of my Audi A3 during hot summers?

I just purchased an Audi A3 and I'm worried about the hot summers in my area damaging the leather and plastic interior. What are some tips for keeping it cool and protected?

Use a windshield sun shade and park in shaded areas when possible. This will help prevent the leather from cracking and the plastic from fading.

Invest in a leather conditioner and regularly apply it to your seats. It will help moisturize the leather and prevent it from drying out and cracking in the heat.