answer to the question 'dp i use my A/C?'
well, no. i guess it would help if i had A/C though.
where i live, it gets pretty damn hot, like before the wet season here, theres a period called "the Build up". this is now. and the humidity gets up to about 80%, and temp is about 34-36*celsius. don't know what that is in F.
but seeing as i'm used to the heat, i almost always go top down in the cooler months (dry season). other wise i run without a back window, and windows down. and the sun really burns you up, literally, like, i don't get red from sun burn, or peel, i just get really dark, meaning i got roasted.
i'm getting a new top made as i type, might be ready in a couple of days, and window tinting (5% light transmission) is next on the cards. tint really helps.