Trowa remains quietly bemused by the inefficiency of the social expectation that rich people not get their own cars out of garages.

He doesn't say that, any more than he has on any of the other occasions that this has happened. Instead, he heads for the car, and its passenger seat. (Silently, he approves of the choice of vehicle. Trowa is, and will always be, a mechanic and pilot at heart -- and one who understands the uses of both conspicuousness and discretion.)