I'd say I trust my car to not do something stupid. If it was a person, it wouldn't spend the grocery money on lottery tickets. But if it was a person it would put the toilet paper on backwards and burn dinner because they were watching TV and lots of other little things that would bug me.
I liked my last car, but when it was time to change, I shrugged and moved on, sort of like you said. This one, then, isn't a bad car, but it isn't a great partner.