If none of the above options work for you, there are a few other things you can try. You might want to look into buying a new car scent diffuser, which slowly releases fragrance over time. You could also try using essential oils in a diffuser, or even just placing a few drops on a cotton ball and putting it somewhere in the car. At CarCologne, we stock many different products to make your car smell good from sprays to diffusers and even humidifiers.