help developing vehicle addon

Hello, i’m new here, and i would like to make a vehicle addon for gmod. Its quite complex, i know some programation and i’m a advanced linux user. I would like to request some samples of how to make a simple box with 4 wheels with a gun in the top that has angle limitations. any help is accepted.

You can look at SCars Slim sources if you want to make your own Lua car, but it’s better to use prop_vehicle_jeep entity as it’s ready for use and highly customizable.