In many modern cars there's safety switch, which doesn't allow the driver to start the engine unless he presses the clutch(on manual), or puts the transmission in Park, or Neutral(Automatic). I've been able to implement the feature in a mod, which can be downloaded from the attachment in this post. I've made sure that the normal vehicles that are already in the game will still work as before. The mod adds transmissions for Covet, which will have these safety switches installed. In case of the manual, it's the clutch safety switch, in case of automatic, it's neutral safety switch. The vehicleController will have additional value, which will be false if not specified. Code: "vehicleController": { "SafetySwitch": true, // Enables safety switch feature, the value will be set to false if not specified }, Implementing this into the game would add a bit of realism to the simulation.