Don't worry, like many of the racing sims released in the last few years,
I'm sure there will be a small but vehement "anti-GPL" group that will
lambaste the sim for anything and everything. In addition, the trolls will
probably return with the "GPL is an arcade game not a sim because I suck at
it" thread that was really big when the first demo was released. Another
popular thread will be along the lines: "GPL sukz 'cause with a full field
of cars and all graphics turned on it runs crappy on my Cyrix 166 in
software rendering mode" or something like that.
As far as racing sims requiring a high-end PC when they are newly released,
there is certainly nothing new about that. I personally have just upgraded
to a system that will allow me to play F1RS at a really good frame-rate with
all of the details on, and look how long that has been out. In the last few
years of racing sims, I have yet to see the argument "we just didn't put a
good physics model in because we knew it would be slow on today's
computers".
Patrick Gilmore