I was just wondering if rF2 will support boat racing? I know there was a Hydroplane mod for rF, but I also know there were a lot of difficulties getting it made/work. I've always thought an F1 Powerboats sim would be a blast and I'm kinda hoping rF2 will have the ability to make that possible. This is not a 'wish list' request, just a question of will or could rF2 support this idea.
You could try Ilan Papini's Vehicle simulator (ex Virtual sailor), it is moddable too and only boat moddable boat sim that I know of really. Car stuff in it is not worth to mention, but boats and planes are not too bad I think. Lacks of 'track' makers, so there are not many sceneries that would look any good though. It has also multiplayer but haven't tested that. Also Rigs of Rods has some sort of boat possibility, but not very good, imo. However that is free, just not much boats to download. Just some alternatives as I doubt ISI will tackle that area, they have plenty to work with land vehicles and different ground types.