The 3.0 CSL gets all the love and for good reason, but the standard 3.0 CS is a delight in its own regard. The torque—of all the preconceived notions I might’ve had about the 1973 BMW 3.0 CS, big ...

One of the most coveted icons of Porsche’s air-cooled legacy—the 1973 Porsche 911 Carrera RS 2.7 Touring—is set to cross the block at RM Sotheby’s this April in a headline-grabbing sealed drop event.