Because Steam or the original launcher will try to overwrite your modded files with clean ones, you need a custom launcher (like the universal launcher found on community hubs like TurboDuck ) to bypass file checks.
If you search for "TDU2 car pack," you will find many outdated mods. The Unofficial Pack 0.4 is the gold standard because: tdu2 car pack
Released late in the game’s lifecycle, this pack aimed to fix the "missing legends" from the car list. Because Steam or the original launcher will try