The history and development of the Porsche Panamera, detailing all model typesIncludes interviews with the design and development team In 2009 an idea took shape, that had come up several times in the history of the Porsche company - the idea of a powerful four-door touring sedan with sporty genes. The prototype 989 almost got there in 1988, but for strategic reasons Porsche did not start batch production. It would take more than 20 years before...