都普
Duple Metsec were quite proactive in working with Dennis Specialist Vehicles to develop a body for a short 10.6-metre version of the Dennis Trident, and they bodied the first two short Trident chassis. Along with the two original 12-metre prototypes, these buses were unique in being assembled by Duple Metsec themselves at their Birmingham premises. Normally Duple Metsec only produced body kits for assembly by either third parties or by the bus operators themselves. Later Duple Metsec also developed a 10.3-metre low height version for New World First Bus of Hong Kong.