Try this:
1 put your car files in the script directory (should be a txd and a dff file)
2 make a textfile named vehicle.lua
3 insert this code in vehicle.lua:
addEventHandler('onClientResourceStart', resourceRoot,
function()
txd = engineLoadTXD ( "nfernus.txd" )
engineImportTXD ( txd, 411 )
dff = engineLoadDFF ( "infernus.dff", 411 )
engineReplaceModel ( dff, 411 )
end
)
4 change the "infernus.xxx" to your files. also change vehicle id (411) to what model you will replace, ID´s are here
https://wiki.multitheftauto.com/wiki/Vehicle_IDs5 save file
6 open meta.xml add these lines:
<file src="infernus.txd" />
<file src="infernus.dff" />
<script src="vehicle.lua" type="client" />
mod them to match your file names.
7 save
8 test
Think that will be all, if not work try /debugscript 3 to se the error code.