How to download custom map?!

Move if not in correct subject <3

So I’m trying to figure out how to download custom maps on my FiveM server such as this map:

If anyone knows, please let me know, becuase I really have no idea.
Also, does anyone know how to download/install a OpenIV car pack? This one:

Thanks,

  • Pizza <3

to install the maps download them and follow the below guide. The tutorials section has some good stuff for cars as well.

he said how to i download, not install.
you click that download button and it downloads

I think he means install

“on my FiveM server”. Heavily implying install