Nice build. I am currently on my fourth model. Looks really nice for a third. As far as suggestions, I say work on the polishing some more, I am too, it takes alot of time to get it down and alot of product experiments. The paint looks really nice on the interior, but a few spots on the dash look sort of blotchy. Use less paint on the brush and go over the area a few times. You get a very thin level of paint, but enough to cover the area to make it look good. Everything else looks awsome.
Remember you can always add extra detailing too... wiring the engine, painting the seatbelts a different color, certian little things will make you model that much better.