You can look anywhere you want online regarding GTA ,
All there cars are copies , with over 97% resemblance to there real counterparts ,
They have zero licenses at all ,
They simply create close replicas with no branding and no logos n such ,
If a billion dollar a year business is doing this like many other games and games in the past there is simply no issues with it ,
As
@David Dominguez was saying this discussion on car forums as been going on for many a year , 2012-2013 and still will be going on in 2022 ,
Personally I am a 3D artist simply love making cars for racing games , its my main passion ,
so its either simply make a living making content , or simply make 3D cars and sell them online ,
but the community would be loosing out ,
No one if forcing anyone to pay for mods , its simply a free choice like freeware is ,
but either way you look at it freeware or payware everything as some kind of copyright at a certain level ,
Take EA Sports for example , they make perfect replica guns and have done in all there games forever ,
and they simply change the name ,
They have never once paid anyone for a gun license in any single title they have released ,
same as SMS / GTA / and many many other companies the list is endless .