Everyone loves the smell of a new car, but it never seems to last. The problem with a new car smell is that you'll only smell it in a car that's, well, new. It goes away after a few months of drive-through meals, hauling passengers, coffee spills, and all the other things that can affect a vehicle's smell. And yet, there are things that you can that can preserve the coveted new car smell or at least make your car smell almost like new again.