In 1924, the Rüsselsheim-based company went even further to cater to the “average consumer” – also thanks to an automotive innovation. After all, from the very first minute Opel was committed to producing cars as efficiently as possible and thus making them affordable for a broad customer base. Consequently, the 4/12 hp heralded the start of assembly line production in Germany. And because the 60 km/h fast car was only available “in a quiet green that pleases the eye” to keep the time and effort required for production at a minimum, everyone called it the “Tree Frog”. Soon, 25 two-seater “cars for everyone” left the assembly line every day. In the following years an entire vehicle family was built on the Tree Frog technology. The smoother production ran, the greater the cost advantage that Opel passed on to its customers. Unbelievable but true: the purchase price of the 4 hp model series, of which 119,484 units were produced, was almost 40 per cent lower in 1931 than at the launch of the Tree Frog model.
This range of engines was also used for later models of the Corsa/Nova, and the mid-sized Cavalier/Ascona. From May 1981, the 1.3 was also available with a three-speed automatic. The automatic was made available to the diesel in September 1982. One interesting version which first appeared in mid-1982 was the Kadett Pirsch, (for deer stalking, a stealthy form of hunting). In non-German-speaking countries it was generally marketed as the Kadett Off Road. This was a station wagon with rustic trim, fitted with a differential brake, reinforced suspension and more suitable tires, increased ground clearance, a skid plate, and shortened front fenders. In Sweden, a special postal Kadett ("Opel Kadett Post") was offered, fitted with a high roof (necessitating a unique and much taller windshield) and a sliding right-hand door, RHD, and the automatic transmission. This version was converted by Karosseriefabrik Voll (in German) in Würzburg, Germany. Voll also made a postal version of the Kadett E.
Furthermore, the front end was completely stripped of any superfluous sheet metal, and was clad in a composite one-piece clamshell to reduce weight and increase rigidity. The changes were complemented by lighter multi-spoke BBS wheels, and an evolved aerodynamics package, which further distanced the car from the production model. Meanwhile, Cosworth managed to extract some more revs (up to 12,800) to fire 457 horsepower at all four wheels.
GM retains an engineering centre at Millbrook in the UK and is no stranger to tuning cars there, because it knows that British road conditions are different from those elsewhere. So whereas Opel Corsas, belying their German engineering origin, will apparently have greater straight-on stability to their steering, UK cars get a different power steering tune (electric assistance makes that much easier).
Opel was marketed in Malaysia beginning from the 1970s, and early models exported were Kadett, Gemini, and Manta. Opel had moderate sales from the 1980s until the early 2000s, when Malaysian car buyers favoured Japanese and Korean brand cars such as Toyota, Honda, Hyundai (Inokom) and Kia (Naza), which offered more competitive prices. Sales of Opel cars in Malaysia were dropped then, as Opel's prices were slightly higher than the same-segment Japanese, Korean, and local Proton and Perodua cars, and they were hard to maintain, had bad aftersales services, and spare parts were not readily available.
Plastic cladding on the lower end of the vehicle along with silver inserts in the front and throughout the lower section of the vehicle serve as reminders of the vehicle’s confident appearance while displaying functional and sporty elegance. The side profile features crisp side lines and a seemingly ‘floating roof’, which visually separates the lower section from the upper one, visually stretching the Crossland X. The ‘floating roof’ also displays its relationship to the arched chrome window line on the Opel Adam, which drops towards the rear. Like on the Adam, customers are able to order a different color for the Crossland X’s roof.
In addition to its West German home market, the Kadett A sold strongly in what were becoming the manufacturer's traditional export strongholds (notably in Benelux, Scandinavia, Austria and Switzerland). Between February 1964 and the Autumn/Fall of 1965 the cars were also exported to the United States where they were sold through approximately 500 Buick dealers. The same 993 cc engine was fitted and it is not clear whether it was differently tuned for North America: horsepower ratings were differently computed in the USA, following locally devised "SAE" rules: for American market purposes the maximum outputs for the engines were quoted as 46 hp (34 kW; 47 PS) and 54 hp (40 kW; 55 PS).
During the 1930s, the Rüsselsheim plant was never given a major role in Germany's war preparations. Neither was Ford's plant in Cologne considered trustworthy enough for a big assignment, such as tank manufacture, in view of their earlier foreign associations. Initially, of course, the war was thought to be a short one settled in Germany's favour. Auto plants were shut down, to conserve resources, but not converted to other jobs. As was common with much of the production in Nazi Germany during the war, slave labor of deported civilians and Soviet POWs was utilized in the Opel factories.
Unfortunately, Audi took things a step too far in 1990, when it unleashed an unlikely super weapon. A massive 4.8 meter limousine powered by a V8 created from two Golf GTi 16V engines: the V8 quattro DTM. Helped by 450-500 horsepower and quattro four wheel drive traction, the huge brute took the 1990 and 1991 championships by storm, embarrassing BMW and Mercedes-Benz in the process. When the company took the liberty of fitting a modified flatplane crankshaft in 1992, the jig was up.