I play lfs since at least 2006. Love the idea for the spectating, and replay viewing, btw. Don't really have any plans of buying it. I kinda understand why we are not supposed to make new cars for the game (cause ther will be tons of garbage). But on the track side i totaly don't get why it's closed for modding. Drive on any famous track in rFactor - they are absolutely great! I had so much fun on nordschleife! - even the best physics can't replace that. There are tons of examples, like Pikes peak, Laguna seca, Monza, Top gear track, etc. I would love to drive the XFG in nordschleife!
Perhaps because the devs want to maintain the high-ish level of quality as far as content goes? I could only see modding work if they were approved by Eric or whatnot.
I would be up for driving the FO8 on the TG track from the other hand. It will not probably happen though.