Excellent mods, I tested most and they delivered, but decided just to keep a handful to avoid unnecessary mismatches and such. Graphics receive nice improvement with some patches with rare squeaks. The FOV mod is stellar. The ffb patches are surprisingly good too, testing with a DD (sc2 pro) it feels pretty great, not too far behind at all of modern sims (I wonder how long it took to be done, kudos). Sometimes I get an error message or another, and I often need to set up some things from scratch, but it's not a huge bother.
It's a short memory issue, the problem doesn't come from your PC but the way a 14 years old 32bits GTR2.EXE works. Many people on many forums (steam first) suggest to install the old nocd : this is the worst idea because it is limited to 1.8gb RAM, so if you load recent mods/tracks converted from AC/ACC/RF2/F1 20xx codies then your allocated 1.8gb of RAM are full and Crash-To-Desktop without signal in trace.txt file.
Both NOCD1/NOCD2 in HQ Ann. Patch are 4gb patched so you've got an extra 2.2gb of RAM allocated which means you can load a bit more Ai cars without CTD, but at some point you will reach 4gb RAM and CTD too. The new games such as AC/ACC/RF2 are 64bits and can use all your pc RAM available so this is a problem when you convert material to older games as GTR2.
By example, with old nocd of 1,8gb ram I can run around 20 high polygons AC cars, and with 4gb patched NOCD1/2 from HQ Ann. Patch I can load 35 AC cars...but I have CTD at 36 cars grid. Of course it will be even less cars if I run them on heavy tracks >100mb.
So my advice is to reduce AI opponents when you run heavy mods/tracks to not exceed 4gb RAM allocated.