Within Opel the Calibra was a car with potential but sadly much of it was unrealised. Valmet Automotive in Finland, who had a manufacturing facility that build Calibras alongside the German plant, produced two handsome convertible prototypes that never saw production. A Saab coupe based on the Calibra was also rumoured but, again, never saw the light of day.
In 1982 Opel once again accomplished a great feat with a small car: the Corsa A joined the range below the Kadett, which by now was becoming a compact model. Designed by Chief Designer Erhard Schnell, who also penned the legendary Opel GT, the only 3.62m-long Corsa was notable for its prominent rally-car wheel arches and a drag coefficient of 0.36. Offered initially as a two-door hatchback and sedan, and a five-door as of 1985, the Corsa again demonstrated how masterfully Opel can generate space on a small platform. The 100hp GSi also combined frugality with fun. Originally conceived as an entry-level model for those on a tight budget, the Corsa A had become a bestseller by 1993 with a total of 3.1 million units sold.
In March 2017, Groupe PSA agreed to buy Opel, its British sister brand Vauxhall and their European auto lending business from General Motors for US$2.2 billion.[32][33] In return, General Motors will pay PSA US$3.2 billion for future European pension obligations and keep managing US$9.8 billion worth of plans for existing retirees. Furthermore, GM is responsible for paying about US$400 million annually for 15 years to fund the existing Great Britain and Germany pension plans.[32]

Both the Opel Karl and its Vauxhall Viva twin will be built alongside the new Spark in South Korea. Looking at the Opel’s measurements, we can see that the new 2016 Chevrolet Spark’s footprint will grow ever so slightly, with a 0.4-inch longer wheelbase and a 0.2-inch longer overall length. The new car’s roof is 3 inch lower overall, and the car could also weigh around 200 lb less than today’s model if the Karl’s 2070 lb curb weight is indicative of the U.S.-spec 2016 Spark’s specification.
The Opel Corsa also keeps up with its competitors in terms of luggage space. With 286 liters of trunk space, an acceptible amount for storing 2 large or 3 medium-sized suitcases, most travelers will be able to fit whatever they need for their trip. For smaller travel groups who won't utilize the rear seating, the back seats can be folded down, providing additional luggage space totalling 1100 liters. 

The Kadett A (above) finally appeared in 1962, and was a classic GM/Opel effort: highly pragmatic, conventional in every respect, reasonably stylish for its time, and designed to deliver a good bang for the buck. In just about every way possible, it was the antithesis of the VW: front-engine rwd, a rather tinny but roomy body, highly tossable but with a primitive suspension and ride, a very roomy trunk, and excellent visibility as well as economy. Oh, and a proper heater even! Its little 987 cc OHV four made 40 net/46 gross hp, six more than the VW 1200. Its trim fighting weight of 1475 lbs (670 kg), some two hundred pounds less than the VW, showed in both its acceleration and body integrity.
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