The Flat-Four 'Hemi' You Never Knew: The Ominous Race Motor That Costs North of $250K

In Porsche's long and storied history, few mechanical creations have reached the mythical status of the four-cam flat-four engine. Born in the crucible of motorsport in the early 1950s, it was a purpose-built weapon for speed, precision, and endurance. The Fuhrmann engine-named after its developer, Ernst Fuhrmann-powered icons like the 550 Spyder, the 356 Carrera, and the 904 Carrera GTS, machines…