Answering the question in order:
1: Yes, i'm using the Universal Launcher, since a lot of PC TDU2 recommend using it;
2: Strangely, no, I thought this bug would happen after installing the patches, but it never happened, mmm...
3: Hmm, never thought this game had one, i'll take a look, see if solves the issue.
EDIT: Found the problem, I was missing a lot of files, like the wheel files, but also some cars, the ones I was missing was the BAC Mono and Nissan GTR R-34, i'm downloading to see if fixes all the issues.
EDIT2: Reinstalled Unofficial patch from this site and it fixed everything, I guess the .exe file I had was glitched or something, thanks for your help! :)