Kinda makes me want to get one of those wire hotdog rollers that you see in convenience stores and just set it up in my back seat whenever I'm going somewhere and will be leaving my car in the sun for a few hours. Just load it up with hotdogs, turn on the thing to make it spin (no heater required), go about my day and when I get back to my car, lunch is ready.

.... But then, I think of the smell.