Required!
http://www.dev-c.com/gtav/scripthookv 
https://www.gta5-mods.com/tools/scripthookv-net


Information
A start-stop system automatically shuts down and restarts the engine to reduce the amount of time the engine spends idling.

Long story short, When you "the player" Is Driving a Car or Motor and stops for 5 seconds, ( Example: infront of a traffic light ) the Vehicle engine will turn off.
Start driving to turn engine on and start driving.


Instalation
Place the: Start Stop System.dll inside the Gta 5 scripts folder

Credits
Me: Meestal_Richard ( for making this mod )

@stillhere > ( For helping me bug fixes, and learning me scripting ) 

@Jitnaught > ( for helping me understand how i could let the script check if player is on a bike or car )