My post implied nothing of the sort, it was a quick response based on it being nearly a year since the code was complete and Microsoft having very deep pockets and a huge number of developers, if necessary to save face.

I don't think the netcode struggles at all if everyone has a solid connection - the game generates very little traffic. Graphically I don't think it over-taxes the 360 either, but yeah, it can get glitchy when the shit hits the physics fan. Some of that could be offset by, for example, putting less effort into how bumpers behave once they're off the car, or the cones. A lot of small steps are often more effective than one big one. Do some of the less significant calculations a little less often - okay, you're sacrificing a small amount of accuracy, but fix that properly in Forza 3.

Being built as an 8 car racer doesn't mean it's completely impossible to turn it into 12, or 16 - software engineering is usually about making something do something else instead of chucking baby out with the bathwater and starting over.