every NR track ever made. However, about a dozen or so of them
appear to be illegal copies of tracks from other sims (every one
of Dave Noonan's converter tracks-yes the non-free ones!-are
there): there's also a Road America knockoff. The funniest/saddest
has to be a Spa clone called Death Valley, with cheesy western
US 3DOs like cacti and mesas (see screenshot).
I think the Papy Nascar community could use a site like Magnus'
for GPL, run by someone who is sensitive to such legal issues.
John DiFool