Rare tracks, huh? Alright, here's a few that I'm pulling out of my collection, mostly at random. Some of these might not be that rare.
Albacete -- A track made by Alfredo Martinez Romera in 2005.
HLR GP -- TM Master Cup series fans will be familiar with this track, since it features as the Round of British Columbia. I did edit it for TMMC, and as a result, there are a LOT of loose files here, but there were a lot of improvements to the original as well. This track was a rare track 10 years ago, let alone now.
SimTel Park -- I found this in my track backup folder and picked it at random, to be honest with you.
Hialeah J9 -- Used to be a real track in Florida.
Houston DX -- Based off a planned NASCAR track in Houston that was never built. I did fix this track up a bit, but there wasn't that much to fix.
Factory City -- Kind of an ugly track that races pretty well. I think it's an edit of an ICR2 track. I actually won a race here online.
Desert Winds -- Sadly, the name is misleading. It's a decent infield road course (not a roval!!!!).
Freedom Motorsports 1.1 -- Pretty sure this was a league track. It's a fictional superspeedway, I think, because it's not like there are 300 of those. Not a bad looking track, honestly.
Cape Cod -- A truly AWESOME road course that I fixed up awhile back. Brian Wallace did about 90% of the work on this.
Eagle Point -- Road course that TM Master Cup series fans might recognize as the "Fraser Coast Motorpark"
Wabash -- Fictional short track with a lot of banking. Suitable for online.
Nox Raceway -- Pretty good short road course. I've run it online and offline and it's a solid track.
Robertson Park -- Bristol edit where you turn right instead of left, with an off-camber pit entrance that's on the outside of the track, which never leads to bad things ever. Made by Greg Brockway in 2004.