This is exactly why serious game companies will never put the code in to
help with the set ups. It's not about if they are able. The computer could
make all the calculations and have a perfect set up for you to run. It's
more about what those companies feel there customers want in a sim.
But fortunatly there are very few elitist hard core simers out there, and
soon it will not be profitable for companies to make sims for the select
few. The majority of the population will not buy a game and compete online
if they know they can't win.
So you can brag all you want about having better set ups and lap times all
you want, because this will be a thing of the past in a matter of a couple
of years, and the rest of the majority of the public will be content with
GT4 or NFS7 (or what ever they are up to).