My mom left a 12 pack in her back seat while she was at work the other week. It was probably one of our hottest days so far this summer... PV=nRT.. Temp went up, pressure went up.. BOOM. Wouldn't have been so bad, but she had opened the 12 pack and taken a can in to put in the fridge. So when she came out to the car after work, the inside of the car was covered in soda that had been baking in the hot sun for a few hours. Good thing it was diet soda... Was a real mess to clean up. Cleaned the leather, shampooed the carpets and floormats, Windex to the headliner (be careful not to get it too wet, or you'll ruin the glue and have a sagging headliner), Zymol cleaner to the interior plastic.