The for GTA San Andreas on PC—sometimes called the "shooting cars cannon mod"—is a script that allows you to shoot vehicles (and other objects) directly from your weapon as if they were projectiles. Mod Features

: Fire various vehicle types (cars, bikes, etc.) as bullets.

: Designed to work with the standard PC version of GTA San Andreas using the CLEO 4 library. How to Install (PC)

For more comprehensive modding tools, the CLEO MOD Master app offers a collection of over 400 scripts, though it is primarily focused on mobile platforms.

If you are looking to shoot from a car rather than shooting cars out of a gun, use these standard PC controls: : Q Look Right : E Fire : Left Mouse Button (LMB)

: Find the "Shoot Stuff" or "Shoot Car" .cs file from reputable modding sites like MixMods .