I also think that this proposal is ill-conceived. My everyday car nowadays is an Audi A2 that is 20 years old, and has a lot of life left in it. The longevity of ordinary cars has improved tremendously, it seems to me. My Audi cost me just under £3500 three years ago, once I had paid for a new alternator and some new tyres. I have it maintained by an excellent local garage. It has needed one or two mechanical things done, but nothing drastic, and new brake discs. The running costs have still been very modest. It is much cheaper to own and run than a newer car, and that is ample incentive to keep it on the road.