I found it. Buried in a 7zip file on a server in Novosibirsk. The file date? October 12, 2020. It required CSP 0.1.60—ancient, unstable, glorious.
The Last Analog
Keywords integrated: assetto corsa 1.16.4 mods, CSP, Custom Shaders Patch, Sol, Content Manager, RSS Formula Hybrid, LA Canyons, GT4 pack, drifting, tire model 10. assetto corsa 1.16.4 mods