[i want creat mods]

Im here for the same reason. I believe you need Visual Studio and some template, there is a guide on Google. Learning curve seems hard, at least if youre not used to mod stuff.

Its a start...

https://www.racedepartment.com/threads/guide-how-to-make-mods-for-mysummercar.147475/

[how to make mods?]

DId you ever get around this? xd