Porsche's Shift from Air-Cooled to Water-Cooled Engines
Porsche switched from air-cooled to water-cooled engines in 1997 primarily due to stricter emission regulations, the need for more power and better cooling, and cost efficiencies. The last air-cooled 911 was the 993 model, launched in 1993, which marked the end of an era celebrated for its unique charm and engineering.