To him. While I'm not terribly familiar with how some men are with their cars, I'd not compare Temeraire to a car. I think you may have the wrong impression, but Temeraire is as intelligent and free-thinking as any man. Moreso, in fact. I'm not sure I've ever met one of God's creature more willful or clever than him.
Oh dear, I see how my comment could have come across like that. I simply mean that they don't require the same level of discipline as a combat ship might. Merchant ships are, of course, vital lifeblood to Britannia.
I'm afraid I'm all booked today, though perhaps we might get dinner tomorrow? Or this weekend, if you would rather.