Car perfume. Personally, I think it's better to be gentle. Automobile solid perfume always feels full of all kinds of artificial chemical harmful raw materials. Liquid is better. Shanghai osmanthus or Paiya are waiting for perfume, or hope 2000 (50ml is only a dozen or twenty dollars).
If you want to smell better, you can spray some air fresheners or buy some fragrant flowers, such as Huang Guolan and Gardenia.