When the MkII Vauxhall Cavalier (and Opel Ascona) were announced GM investigated options to build a convertible version, with several companies including Michelotti responding. The production version was announced in 1985 and came from a design by IAD in Britain and produced by Voll in West Germany under their 'Hammond and Thiede' brand. The Voll company was founded by Josef Voll in 1926 to repair vehicles before branching out into coachbuilding buses and emergency vehicles. They were taken over by Hammond and Thiede in 1985. Hammond started in Dover in a shipping business, and partnered with Michael W. Thiede a German business man for the creation of an Opel Ascona Cabriolet. Taking over Voll, which was in decline, gave Hammond and Thiede the facilities and skills to carry out the conversion work on the Vauxhall/Opel convertibles. The design and build were of such high standards that Porsche tested the cars and pronounced them excellent.
Vauxhall Cavalier 1986 1800i Cabriolet, this was powered by a fuel-injected 1,796cc engine.
Crayford Cavalier Centaur
Convertible Cortinas
Vauxhall Cavalier 1988 i Convertible. The Series II Cavalier replaced the Series I in 1981, and Vauxhall decided to offer a cabriolet version of this. Using the 2-door shell, only available for Opel Asconas, the conversion was given to Hammond and Thiede in Germany.
Vauxhall Cavalier 1986 1800i Cabriolet
Vauxhall Cavalier 1987 SRi Convertible. Conversion designed by IAD and carried out at the Voll works of Hammond and Thiede in Germany. The 'chip-cutter' grille was given in a facelift in 1985 and replaced in 1987
Vauxhall Cavalier 1988 i Convertible. This Cavalier has been given an after-market grille with auxiliary lamps
Vauxhall Cavalier 1988 i Convertible. From 1983 a fuel-injected option was available on the Cavalier 1.8, although the more powerful version was given to the SRi, CDi and GLSi
