I didn't get the standard new car smell, but I do have the new leather smell. I have a very keen olfactory sense and I don't smell anything obtrusive from the outside anymore, even without bio-defense on. This might be because the auto climate is more inclined to recycle internal air more than it vents from the outside. It could also be because of the carbon filters. I'll have to play with manually venting from the outside more to come to a final conclusion. In my old car, I used to easily smell smokers a few cars ahead of me. Now, I don't smell any of the outside environment.