That's the thing: it depends on how you describe a "small rumble." Coming from a silky smooth V8 it sure seems like more than a small rumble to me but maybe it is normal:- it only happens at idle- the steering wheel has a noticable vibration, you can almost see it moving and when you touch it is like using one of those small hand massager's- there is a clearly audible sound, sort of a low, continuous grumble similar to the small engine diesels I've been it . . . bgggg-ggg-ggg-ggg-gggg-gggg-ggg.It would shock me if the car came off the lot like this in 2003 because nobody would buy it -- it sounds too much like "something is up" even if it isn't. Hence my concern. Other than the rumble at idle, the car drives like an absolute dream at all speeds and feels/looks like it just came off the new car lot.I can live with it if it isn't the symptom of some larger problem, or a sign of bad things to come . . .ETA: In retrospect I should have drive more 4 cyl Hondas to compare . . . in reality I'm a busy father of two young girls who was at a dealer 40 miles from home with a check burning a hole in my pocket and a dead Ford Exploder at home.