(I've only ever heard it called series 3 in the states and most of the people on here are yanks)
No one who knows cars, in the US, calls it "series 3."
Eurotrash or not, that other poster had it right. Learn the lingo. Also, you didn't really counter his claim, so it's safe to assume that you have a bottom of the line 3 series. Nothing shameful in that, it's just not something to be particularly proud of.