I spilled a gasoline oil mix for a chainsaw in the trunk of my car. The whole car smell like gasoline and oil. How do I get the gas /oil and the smell out of my car?

Park it outside on non rainy nights and leave the trunk open, remove the light bulb, you are probably going to have to get rid of the carpet stuff back there. Contact a business that does cleaning after a home fire or a smoke damaged home. Baking soda soaks up smells too.

Just put a whole box of fabric sheets in your trunk, spread out. Overnight it will take it away