Well where I live the car also gets well over 100# for a good part of the year and here's what I can and can't carry. First off on the issue of food I highly recommend Mainstay SOS food rations. They are uneffected by such temperatures, taste great and are pretty healthy too. Now here's what I DO have a problem with and still have not found a solution. Medications..... I can not find any way to store meds (OTC or prescription) effectively. I spoke to a Pharmacist about this and she told me not to let my meds sit for more than a day or two at temps over 86#. Well that doesn't help me much. Maybe one of the doctors, pharmacists or EMTs could help with this predicament???