Ha. Just kidding. Of course Yes! What else am I supposed to do? Drive? Pay attention? Let's don't be ridiculous here. Everyone's favorite car activity is eating, and that is more true for children than for anyone.
But I am far too conscientious to give my child something like goldfish crackers or cheerios to snack on while we are on the road:
That's a bowl o' mashed potatoes. Food that sticks to your ribs, that's how we do it. When he finishes those off, I'm going to pass him back a steak (medium-well) and then a head of lettuce and a bottle of ranch. He's a lucky, lucky boy!