[REmixs1]

How can I add signboard to vehicle?
I mean textdraw on some vehicle,

[TheToretto]

TextDraw? Do you mean 3D Label by that?

[CherryMond]

You can try this: https://sampforum.blast.hk/showthread.php?tid=544162

Possibly create an object, add text on it and attach it to the vehicle?
https://sampwiki.blast.hk/wiki/CreateObject
https://sampwiki.blast.hk/wiki/SetObjectMaterialText
https://sampwiki.blast.hk/wiki/AttachObjectToVehicle