The 1997 993 Turbo was the last of the 911-shaped cars to use the famous air-cooled flat six, and by then it been bored out to the limit, yet still used just two valves per cylinder. The key to its enormous output was, as ever, turbocharging, though this model was the first to use twin turbos, Porsche again choosing KKK for two smaller units, which virtually eliminated the turbo lag which had been associated with previous models. Aside from the engine refinement, Porsche had also made the power far more useable, thanks to four-wheel drive which had first appeared in the Carrera 4 model of 1989. Cleverly, to make it feel like the old cars, the rear wheels would be driven only in normal situations, but when sensors detected traction was being lost, drive would be fed to the front wheels as well. The 993 goes down as one of many Porsche fans' favorites.
Porsche 993 Turbo Specifications
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