Wow this is a tough croud! After seeing FLO7s' picture I inspected my Japanese Camry and noted the same gap. I conside myself a bit of a car enthusist but never saw this or was/am bothered by this. My Audi A4 is put together with care but I consider this Camry to be the best car I've ever owned. It's balance of luxury and economy is unbeatable at this time.
I think were going to see some upscale vehicles using diesel pretty soon but with the cost of diesel (higher than prem. in my area) and its scarcity I don't see it eclipsing hybrids for a long time.
Bob