You're wrong. Even if it were a new driver who bought my old car, it will be off the road in 2-4 years time and recycled. I did imply that it will take years before a dent is made in the pollution. I don't expect miracles overnight but if each of us doesn't make a little improvement here and another there (e.g., economy light bulbs, Class A appliances etc.), then nothing will ever get done.
I was mandated by the Swiss Federal Office of the Environment and the UNEP for many years (in fact, I'll be receiving UNEP's most prestigious award next month for my work, if you'll excuse the boast), so I do know a wee bit of how the environment works.