We are getting a lot of nice mails from developers lately... not sure yet if I am annoyed by the spam or pleased that I don't have to do any research of my own :p
These must be the benefits of real journalists who always get these nice offers from lobbying firms to write fair and balanced articles for them (yeah, I included some social commentary in this blog!).
So... what was in my spam folder lately? Stunt-Rally got an version 1.5 release (changelog here) which a prominent new feature: multiplayer!
You can find a small guide to set up a multiplayer game here. Not sure if player collision is also implemented... it would be cool however ;)
In general I really think the physics are too bouncy however... not sure if that hits the nail, but something feels off about them. Also... "LOD popping" trees is soo last century :p