Car diffusers are a non-toxic natural way to scent your car. 
 
Hanging essential oil bottle that gently fragrances your car. For best use, take out the plastic piece on the top of the bottle, then tip it upside down so the scent travels up the rope. How the scent works is it travels up the rope allowing for it to gently fragrance your car with no spills and no messes. 
 
This is also available in a custom blend or any scent.