Storing a PC in a hot / humid climate

1) can you store a desktop pc in a hot car? what parts shoudl be taken out if needed?

2) I know this might sound dumb but I have a corsair h80i water cooler in a fractal r4 case, I want to know if the comptuer should remain vertical while moving? Guessing it does not matter just wanted to make sure

I am moving to Florida soon. When I get there I am probably staying at a freinds house for a few days before I move into my apartment. I was wondering if I keep two desktop pcs in my car for those few days will they be okay in the potential high heat that might form in my car meaing it will be at least 85 degrees/ very humid and probably higher in my car when it is parked outdoors in the sun (security gated communtiy).    I am guessing if the computers are in a box or covered by something else from direct sunlight they should be okay? thanks for any help

no idea, i guess it would be fine if its covered up ,85 degrees isnt that hot for a computer. 

It should be fine. That's actually quite cool for a computer. Right now my computer is running at 40C which is about 122F.