"Lie down on the back seat! Get some rest. That's what I'm going to do..."
"What? But then who will drive?"
"Mercedes, who else? She can find her way home from seven borders!"
"Are you sure?"
"Of course! Believe me, I had my self-driving carriage before those fancy Car City folks got their Teslas!"
Marty and Blankie are not reassured and decide to sit on the carriage next to the old man.