There are a few things you can do to get rid of the vinegar smell in a car. The first is to clean the car thoroughly with soap and water. This will remove any built-up dirt and debris that may have been left behind from when the car was last cleaned. The second is to add a few drops of vinegar to each gallon of water that is being used to clean the car. This will help to neutralize any smells that may be present and make the cleaning process much more effective.