Turn a livery template into your own design.
Upload the PNG/JPG template supplied with a livery-enabled FiveM vehicle, describe the style, adjust placement and export your artwork as PNG.
1. Give it a direction
This produces a texture image, not a YTD/YFT model. Use the export with a vehicle you own/have permission to modify, then follow that vehicle creator’s livery workflow.
Tip: vehicle UV templates differ. Use the position/angle/scale controls to align the design to the body panels shown by your template.