Cooking while driving???

I'd say go for it with some care and consideration about what is in the oven. Baked potatoes for instance would be pretty safe; they may roll around some, but that's about it. On the other hand, I have a hard time baking a pie in the oven in my house without making a mess inside, and that oven definitely isn't moving around much.

A crock pot or rice cooker reasonably secured (in the sink is a good way) is also reasonable in my opinion, as are some things in a microwave. I would not do anything on the stovetop, nor many prep activities, particularly those involving sharp instruments. Basically, exercise some common sense.