I decided to no longer mention Menyoo, which is a singleplayer menu. Even if it still works, I'd highly recommend people to spawn these online, it's where they are meant too be spawned.
I decided not too recommend any more online menus,, if you are looking to get 1 though, and it has XML vehicle spawning (Which most do/did) Then you'll be able to spawn these vehicles in GTA online. And yes, other players can see them
I might not make any more vehicles or edits, I had a lot of fun and all though my vehicles are not anything impressive, I really enjoyed making them and using them online! They made sessions a tad more interesting, and got great reactions from other players!
Updated info 9/14/25 - Fuck Rockstar Games / TakeTwo
THANK YOU GTAINSIDE, for allowing me to upload my custom vehicles here! (Original uploader of the bunny oppressors!)