Part of the excitement of getting a brand new car is the new car smell, which is actually created by the moisture from factory chemicals that were used to make the carpet and vinyl or leather seats. The fact of the matter is that the new car smell will eventually go away the more you use the car and introduce different smells from the outside, but there are a few things you can do to prolong the new car smell.
Shade Your Car
Whenever possible, park your car in a garage or at least a shaded carport, away from sunlight and heat. This will cause the factory chemicals to dry out more slowly and the new car smell to stay around longer.
Minimize Introducing New Smells
Probably the simplest measure is to avoid smoking or eating in your car, though it is often the one many car owners find the hardest to follow. Whenever possible, finish your lunch or smoke break before getting into your car.
Keep the Interior Clean
Clean your car's interior on a regular basis and avoid using car deodorizers that will change or cover up the new car smell. There are also specialized leather and vinyl seat cleaners that remove dirt and reintroduce the needed moisture that preserves the new car smell.