http://www.simbin.se/games/volvogame.htm

It has rFactor engine, with Simbin mods, that is physics will be weird, but might be some of interest to some as it has Group-A 240, no 300 series of course, not even while it is very successful rally car, well our own 300 mod for rFactor should fill that gap, just need to solve few issues and it should be finally good for 1st release, I think...

DL'ing now

It's very good for a free game tbh! I got it as it has some new tracks and cars compared to GTR's and RACE but its a good standalone thingy

Well, Race and GTR are load of crap in physics wise as is pretty much everything Simbin has made, but they do pretty gfx and level of immersion is quite good, imo.

As this Volvo game is based on rFactor engine, it is maybe possible to fix physics, might require some hammering, but should not be too hard

Well, maybe some day, I have few things on my todo list before that