In the early Nineties, Porsche developed a four-door prototype. Internally referred to as the 989, the four-door Porsche allegedly destroyed before it was shown to the public. Information has come to light that the prototype was not destroyed, and one German magazine did take photographs of the car. Many of the car's styling touches made it to the production 911. Although the 989 was a rear engine car, it is a valid predecessor to the upcoming front engine Panamera.

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