Porsche For Sale 1980 to 1982 Porsche 911: If you are considering purchasing a 1980 to 1982 Porsche 911, you should check out the information below relating to this illustrious 911 sports car. Porsche built 911 numbering 200,000 throughout its 1981-1982 business year. It had been a contented occasion, but an unsatisfied time. Though Porsche's global sales had run consistently within the low five-figures since 1967, demand withered within the first energy crisis to simply 8,618 cars. A fast recovery adopted, assisted by introduction from the front-engine Porsche 924 and 928, and volume hit archive 41,350 models for 1978-1979.