SmartCars.DLL mod is part of the Autonous Driving Mod and is required for AutonomousDriving.DLL to work
By itself, this Mod does nothing but provide a way for other mods to track player driving data and
retrieve it later on.

It  can be used with other Mods, but must be instantiated properly by  calling 
SmartCarsInstance.bindEvents() once you have created a new instance of SmartCars.SmartCars and assigned it
