I got my g25 replacement quite recently and TBH if it's any different to my old one, it's because it got worse: the leather is very stiff and not as good looking.
The shifter sounds the same (clickety-click, of course only in H-shifter mode), but the wheel does not, I think that's because the transmission hasn't really been broken in anyway (I just used it once for 10 minutes)
My old one has been bought around mid '08, and was probably manufactured in late '07, I have lost that small envelope but I think it was a Rev 101. The new one appears to be a late '08 model, and still carries Rev 101 label.
If any of you has a G25 that looks or sound significantly different from older ones, please also check the Rev number!