£4 million covered by the sale of part of the original Dennis site. The Guildford workforce dropped from 700 to 400. Still one of Europe's largest builders of fire appliance chassis Dennis Specialist Vehicles was running at a loss. In the 1980s bus engines stayed beneath the floor but were moved as far back as possible to release luggage space. At the October 1986 Commercial Motor Show Dennis introduced its Javelin design using a 6-cylinder Cummins engine mounted forward of the axle. Previous models had used Gardner engines. The fire engineering division was closed and requirements contracted out to Carmichael in Worcester. At this time Dennis claimed 65 per cent of the fire engine market. John Dennis of the founders' family, previously coach and truck sales manager, left and set up John Dennis Coachbuilders to build complete fire engine bodies. The remaining business was the manufacture of chassis for fire appliances and public service vehicles. Almost all the 35-acre Woodbridge Hill site was sold. At the October 1988 Motor Show Dennis and Duple displayed their new Dennis Dart midibus. Management buy-out At the end of 1988 the Vehicle Division of Hestair Engineering comprised: Warwick's Dennis Eagle which held around 35 per cent of the refuse collector market, much of which was now carried out by private contractors to the local authorities and there was no longer a steady regular demand for replacement vehicles. Dennis Eagle represented about one-third of the Vehicle Division Guildford's Dennis Special Vehicles building PSV and fire appliance chassis. Blackpool's Hestair Duple, the coach body builder with Duple Services and Duple Metsec selling bus body kits for export. Bifort Engineering, a specialist in high technology plastic mouldings. Trinity Holdings Trinity Holdings 1989 renamed Dennis Group in 1997 Trinity Holdings, the management of the Vehicle Division of Hestair Engineering with the backing of banking institutions, bought Dennis from Hestair. Geoff Hollyhead, former head of the Vehicle Division, led the management buyout and was appointed chairman and CEO. The stated intention was to relist the Dennis group back on the London Stock Exchange. Hestair Specialist Vehicles Limited was renamed Specialist Vehicles Limited on 7 March 1989. Duple Coachbuilders was closed down in July 1989 with 350 jobs lost. The parts and service business went to Plaxton, production of the 300 series and 425 Integral followed parts and service to Plaxton later. Plaxton took the Duple sites in London, Blackpool