The base car was available only as a two-door "Limousine" (sedan/saloon). Customers looking for a soft-top "Cabrio-limousine" would need to specify a "Kadett Spezial". For the first time Kadett buyers, provided they were prepared to choose a "Kadett Spezial" could also specify a four-door "Limousine" (sedan/saloon) bodied car, priced at 2,350 Marks as against 2,150 Marks for a "Spezial Cabrio-Limousine" and 2,100 Marks for a two-door "Spezial Limousine".
As the war progressed, military authorities placed greater stress on the development of air-cooled engines, which they felt had more immunity to damage from weather, shellfire, and misuse. To meet this demand, Opel engineers developed an unusual variation on normal cooling for the 3.6 L truck engine. It was called "air-oil cooling", and used engine oil to take heat away from the jackets around the cylinder barrels. The heads were directly cooled by air, there being three separate aluminium finned heads, each serving two cylinders. Of this interesting engine, which developed 72 hp (54 kW; 73 PS) at 3,000 rpm on 74-octane fuel, only three examples were built.
The Kadett E (Vauxhall Astra Mark 2 in the United Kingdom) was introduced in August 1984, and was voted the 1985 European Car of the Year. The 1984 model was also developed into a more conventional three-box design with a boot (trunk), badged as the Vauxhall Belmont in the United Kingdom, launched at Frankfurt 1985. This was awarded the 1985 Semperit Irish Car of the Year in Ireland. There was a station wagon called the "Caravan" available, with either three or five doors. In South Africa, the Kadett notchback was sold as the Opel Monza, along with a convertible. This replaced the Opel Ascona.
^ General Motors Austria Gesellschaft m.b.H. (GMA, founded 1963 as sales organisation; from 1979: Administration, Non-productive Departments an Sales) and General Motors Austria Werke Gesellschaft m.b.H. (GMAW founded 1979; Production). In November 1987 GMAW (Austrian Handelsregister, HRB 24.436) were merged into GMA (HRB 20.133b, actual Firmenbuch FN 110500a).
From 1986 to 2003, Opel models were produced by Delta Motor Corporation, a company created through a management buyout following of GM's divestment from apartheid South Africa. Delta assembled the Opel Kadett, with the sedan version called the Opel Monza. This was replaced by the Opel Astra, although the Kadett name was retained for the hatchback and considered a separate model. A version of the Rekord Series E remained in production after the model had been replaced by the Omega in Europe, as was a Commodore model unique to South Africa, combining the bodyshell of the Rekord with the front end of the revised Senator. The Opel Corsa was introduced in 1996, with kits of the Brazilian-designed sedan and pick-up (known in South African English as a bakkie) being locally assembled.
That makes it a similar size and weight to the outgoing Corsa, at a whiff over four metres long and 1177kg. Beyond that, new means new. Every panel on the mildly Adam-ised, slightly more butch exterior is different. Every component forward of the A-pillars is new. Every suspension component, too, as are the pick-up points for the front MacPherson struts and the rear torsion beam.
The brakes were now controlled using a hydraulic mechanism. The suspension featured synchromous springing, a suspension configuration already seen on the manufacturer's larger models and based on the Dubonnet system for which General Motors in France had purchased the license. The General Motors version, which had been further developed by Opel’s North American parent, was intended to provide a soft ride, but there was some criticism that handling and road-holding were compromised, especially when the system was applied to small light-weight cars such as the Kadett. By the end of 1937 33,402 of these first generation Kadetts had been produced.
While the Ipanema clearly succeeded the Marajó, production of the Chevette (by now in sedan form only, the hatchback having been discontinued after the 1987 model year) and of the Kadett noticeably overlapped; the newer model was placed above the old one in Chevrolet's lineup. While Chevrolet entertained the possibility of a pick-up version of the Kadett E, it never materialized.