I've seen a number of new 3 series cars on the road lately, and it seems that some have chrome window accents.

So I guess my question is this: is there a specific package that includes these? Or is it only the 330's? I know BMW is trying to market the larger engine models as more "sporty", so it might make sense.

Anyway, anyone know the specifics?

Yes, it's just the 330...

and also on the 328

Yes actually i know. I just purchased a 2001 325ci and the chrome comes only on the coupes. I made a specific special order not to get the chrome. I had to get the new M3 trim wich is black.

is this somting you can get? like an option for a 325xi?
or its only on the 330xi.....

Its not an option, but you can order it as a special order. You can change whatever you like on any model. If it is available from BMW.