How do I install cars on my local host server and also tune them?

I want to be able to install and tune cars on my local host server so I can help another server owner tune his cars, and add cars to his server. How would I do this> I good youtube video or a link to a in depth step by step guid would be great! Thank you!

There are a lot of topic that explains how to install vehicles onto you FiveM server : [How-To] Add-on Vehicles (Detailed) or Simple tutorial on how to add vehicles to your FiveM server [Add-on/Replace].

Various resources will let you tune your vehicles, see : https://www.google.com/search?q=lscustom+fivem+site:forum.cfx.re.

Thank you so much! I really aprreciate it! Cheers!