My impression after almost 2 years of membership, and trying to keep strings alive on the RWD forums is that the majority of forum interest is for the vintage Volvos even older than my 1997 960. The first S90 is actually a 1997/98 960, with S90 badging and a slight interior trim difference. It would interesting to contrast the new S90 with the first one. I bought my 960 because it is the last RWD "real" Volvo before Ford morphed the brand into Volvo Tauruses. It is an unusual car, with the aluminum Porsche designed I6, and IRS, and was the flagship for that year. I for one am interested in why Volvo renewed the S90 badge, and if there is any design intent there to recapture the original 960/S90.
In addition, I would like to see a separate forum for the 960, which is a very unique Volvo. However, I do wonder if it would be supported.