When it was announced, the Minister - can't remember who it was - said that there were very few cars of that age on the roads and that they were mostly cherished classics (I paraphrase). OK, we don't get nearly as much traffic up here as further south, but although I have seen quite a few classics of that sort of age and older, a 40 year old car would be from 1979 (an earlier, of course). That would be a T or V plate and I can't remember seeing anything that old - but I haven't been specifically looking. I'll keep my eyes open for such vehicles for a while. Overall, however, I really don't see the point - if there are so few as the Minister alleged, they can't be much of a strain on the system - so why change? 'If it ain't broke, don't fix it'.
Mike