The "gassing" was present after we purchased the car...We weren't in the car long enough to get the full effect (other than the performance:-)). So, we have used the same cleaner we have used in our vehicles for ever to clean the car. It didn't do any good, so we bought an odor eliminator from Gariot's garage. That didn't solve it either. I'll replace the cabin filter, but doubt that's the cause. peace