Porsche is celebrating their 70 years in the making with the Porsche 911 Speedster Concept car. With the Carrera Cabriolet 4 body as its canvas, the Speedster concept pays homage to its predecessors - most notably, the Porsche 356 1500 Speedster. The limited production Speedster is immediately distinguishable from the current 911 line-up, with its “double bubble” tonneau cover and other unique offerings and design tweaks.