Time was when we not only manufactured every part of our buses and coaches in the UK, but also sold them round the world. We must have been the biggest provider of public service vehicles to the globe. Our streets were full of Bristols, Leylands, AECs, Daimlers, Albions, Guys with the occasional Crossley and Maudslay. Gardner of Patricroft provided the motive power to those users who preferred their engines to those of the other manufacturers.
We still have bus-builders, who continue to produce innovative designs. However, the basic mechanics come from elsewhere. This was brought home by the news that Volvo would have to increase its prices to Alexander Dennis and others because of the fall in sterling. No doubt the US-based Paccar, in the forefront of "green" bus engine development as well as powering much of London's fleet, will follow suit.