The car later became known as the Kadett A. In addition to the standard saloon, from March 1963, the manufacturer offered an L (luxury model) and an estate (branded as the "Opel Kadett Car-A-Van"). In October 1963 Opel introduced a coupé version of the Kadett with which buyers could enjoy enhanced style at the expense of rear seat headroom.
^ Jump up to: a b c Note: The powertrain plant Opel Wien GmbH in Aspern/Vienna (Austria) is not a subsidiary of Adam Opel AG but a first-tier subsidiary of General Motors Europe Limited (GME) (99.5%) and of GM AUTOMOTIVE UK (GMAUK) (0.5%), see "Opel Wien GmbH, FN 110500a". FirmenABC Marketing GmbH. Retrieved 3 April 2017. Both, GME and GMAUK, are located in Luton. GME Ltd. itself is a daughter company of GM CME Holdings CV, which is directly controlled by the General Motors Corporation (GMC), see "Name: GENERAL MOTORS EUROPE LIMITED, Company Number: 07556915". Company search, Made Simple Group Ltd. Retrieved 3 April 2017.
The decklid badge says it's an automatic, but there's a four-speed manual inside. Was it a decklid or transmission swap? Either way, these cars were very, very cheap; the MSRP on a 1967 Kadett two-door sedan was $1,657 (about $12,500 in 2018 dollars), which compared favorably to the $1,639 Volkswagen Beetle that year. The Kadett had 54 hp to the Beetle's 53 (and weighed 93 fewer pounds than the Volks, to boot), so it was a bit quicker. On top of that, it had a heater that worked, plus a design dated a lot later than the late 1930s. Of course, most American car buyers looking for something economical preferred stripped-down versions of "traditional" American cars, e.g., the Chevy II ($2,090), the AMC Rambler American 220 ($2,073) the Ford Falcon ($2,118), or the Plymouth Valiant ($2,017). The Corvair two-door was $2,128 that year, too, and let's not forget the $1,790 Toyota Corona sedan.
Under the hood, the ROCKS shares the 1.0-liter, three cylinder gasoline engine (NEDC fuel consumption: urban 5.6-5.2 l/100 km, extra-urban 4.2-4.0 l/100 km, combined 4.7-4.4 l/100 km; 106-101 g/km CO2) of its KARL sibling The unit delivers 55 kW/75 hp and is paired to a five-speed manual gearbox as standard. Alternatively, KARL ROCKS buyers can choose the optional Easytronic® 3.0 gearbox. The five-speed automated transmission combines the comfort advantages of an automatic transmission with the efficiency of a manual gearbox. It automatically selects the appropriate gear for best possible fuel consumption, but is based on a manual transmission optimized for smaller engines which enables ultra-economical driving. The driver can take manual control of Easytronic 3.0 at any time by pulling or pushing the gear selector lever.
The GSi's engine mapping had been carried out by Opel tuning specialists Irmscher. A model with the 82 PS (60 kW) 1.4 L multi point fuel injected engine, which was otherwise mechanically identical to the GSi, also became available as the Nova SRi in the United Kingdom. In January 1988, a turbocharged version of the Isuzu diesel engine was introduced, with power increased to 67 PS (49 kW).