Top Gear’s deep dive into the Gunther Werks F-26 reveals an audacious reengineering of the Porsche 993—one that pushes the boundaries of what an air-cooled flat-six can be. At its core lies a 4.0-liter twin-turbocharged Mezger-derived engine, developed with Rothsport Racing, producing up to 1,067 horsepower on E85. That figure...
