I have seen a web page that lists the differences between model years but can't find it now.
I think it was at one of the auto sales sites (maybe AutoTrader?).
As far as 350 vs 370 interiors, I haven't owned a 350 but have ridden in a few and I'd say the 370 has a much better interior. I don't think anybody would call it luxurious (at least not with a straight face) but it is very nice.