Sure, and the crank driven fans have been replaced by much quieter variable speed electric fans as you noted. These are also more efficient as they can be switched off during highway driving. There are also the thermo-couple engine fans where the amount of fan-clutch engagement is driven by engine heat. My other car has one of these and sounds horrendous when driving in heavy traffic on hot days, but is mostly silent all the other times.

But the big difference between a Porsche air-cooling fan and a crank-driven engine fan is that a Porsche fan is overdriven and much larger (diameter and blades) than a typical water cooling fan which is typically under driven and has fewer blades.