I know - had a mk2 before the 350Z. Going back to one of those would only really save on tax... So was looking at a mk3 with the tiny engine - allegedly 39mpg. But yes, still not going to save (much or any) money. Do want one, but going to look at a Fiesta ST as well, and take it from there.
Interesting, hadn't really thought about Type Rs... Think I just have a notion they're really expensive to run because VTEC.