I think in fact it is Boris making some sort of ill thought out protest against the EU
as this is his view on the new laws from the daily Telegraph April 2004
" The other day, a Labour transport minister called David Jamieson announced in a nannying New Labourish way that we should all start taking more care of our offspring in the back of the car. It was not enough to put the babies in car seats, he said. Any child under 11 years of age or 150cm in height should be equipped with a kind of platform, a moulded plastic or Styrofoam object that you shove under its bottom, he said. This was presented to the public as a thoughtful government recommendation, to show how much they care. It was just a suggestion, we gathered, a way we might choose to make our little ones safer.
In so far as that was the intended impression, it was grossly misleading. Mr Jamieson was really trying to prepare the British public for the time - May 2006 - when these ludicrous plastic cushions or seatettes will become a legal requirement, and they will be imposed on us not by the parliament in which I now sit, but by Brussels. You may or may not think it right to make these "child restraint systems" mandatory. Myself, I see no reason whatever why parents should not be able to decide which journeys necessitate extra care, and which children need "child restraint systems" in the back, whether or not they have attained 150cm in height.
But even if you are instinctively a bit of a nanny, and you do believe in legal compulsion, I simply refuse to believe that you, or anyone who cares about our system of government, can possibly support the way the measure is about to be imposed. This directive, 2003/20/EC, has been dreamt up by some well-meaning but insatiably interfering official in the EU transport department, no doubt in close cooperation with representatives of the European Association of Plastic Seatettes and Child Restraint Appliance Manufacturers. It has then been knocked through the transport council, where matters can be decided by a majority vote, and there is not a damn thing we can do about it.
I don't just mean there is nothing the public can do about it. Even those whom the public elects are completely impotent. Even if there were a New Labour minister with sufficient intellectual rigour to defend parental choice; even if Mr Jamieson had the guts to speak up in the transport council, and say that these plastic seatettes would amount to a confounded nuisance for millions of motorists already facing unprecedented levels of persecution - even then, his views could have been swept aside. "