Away from the glamour of the truck makers' stands at Hanover, a major theme was developing among the trailer builders - the use of ultra-light composite materials. Possibly the most dramatic was this Meierling 25 cubic metre triaxle tipper weighing in at just 3,600kg. After two years and 165,000km of daily use, it's said to be showing no signs of excessive wear and tear. For more engineering news from Hanover, see Commercial Motor on 12 October.