Road rage.

If you're a driver, then you doubtless remember a few years ago being bombarded with literature from the DVLA informing you that in future you not only needed to pay your road tax but, if your car was off the road, you needed to officially register that fact as well (so-called SORN notice). And then later you will probably have seen TV and press adverts telling you that as a result the DVLA now have a database of all cars and therefore can, at the touch of a button, identify those who have not paid their tax or registered themselves as off-road and take the appropriate action. Well, it seems this is all so much hot air - the Department of Transport's own figures reveal that there are some two million untaxed cars on the road, and that this is twice as many as a year ago. So where's this much-vaunted system? Is this another Government IT white elephant?