Last year, I saw a Serious Eats post about a woman who baked cookies on her dashboard. And today, Serious Eats posted about a man who cooked salmon en papillote in his car's engine. Apparently, there's even a book devoted to this cooking method: Manifold Destiny: The One! The Only! Guide to Cooking on Your Car Engine.
I have to admit, I'm tempted to try baking cookies in my car. The weather certainly gets hot enough here that I could do it. But I park in a garage almost all the time, so I probably won't go out of my way to do this.
On the other hand, if money was very, very tight, I would consider cooking in my car as a cost-saving measure.
Image credit: BakingBites.com.