The problem here is that this is just a pure .rpf file if you put it in the resources folder FiveM won’t recognize it or can’t read it.
You have to make the car FiveM ready, extract the internal data and convert it into a suitable resource for streaming.
Here you can find a good video how to do that: How To Convert A dlc.rpf File Into A FiveM Ready Vehicle - YouTube
Please let me know if it works after the conversion 