While vanilla GTA SA automatically starts the engine when you enter a vehicle and shuts it off when you exit, this mod introduces manual toggles:

: Players can turn the engine on or off while remaining inside the vehicle.

: Often bundled with broader "Auto Driver" or "Manual Transmission" packs, it can include the ability to open/close doors, hoods, and trunks, or even use an automated driving mode by selecting a map location and pressing a key (like 'Z'). Installation Procedure