I dunno , You need to come over to my place and have a go at it on my setup. Or i'll record some videos to show its definatly playable, on a PC.
I re-read that other tread. I know what you are talking about, but it plays fine on my setup. i'm sure you'de love the game if the steering input was fluid, and even. (which it is on my setup) Again i have the $70 logitech momo wheel , it came to my office in 2 days off of newegg. i've seen the same own down at carson for like $90. [1 draw back to my wheel is the gas and brake pedals are on the same axis]
I do not have to see saw to keep it straight (then again i have the correct drivers for my wheel and i configured all the settings)
Aparently everyone should test Their PC Setup with the demo to make sure your wheel works with the game.

That sucks Scott, you wasted some $$$ on the game. And i won't get an addtional great competitor.