This video will help you to add some jazz to your cars in Assettocorsa.This is just a basic video how to use Gimp to spice up your cars and add the liveries you want.As promised everything down below.

Link for Gimp ;
https://www.gimp.org/

Short cut keys in Gimp ;
Scale = SHIFT and S
Rotate = SHIFT and R
Zoom in = press the plus on the num pad
Zoom out = press the minus on the num pad

Link for car I used ;
https://mega.nz/file/rw4QTLRA#HKZG3Vu...

Disclaimer ;
The car or any liveries used in this video in not mine and is copyrighted to the creators.I just used it for demostration purpose.