Porsche debuted its new Mission X on Thursday — it’s an all-electric concept car it calls a “conceptual reinterpretation” of the hypercar. Like the Porsche 918 Spyder, it’s a squat, compact affair with bubbly fenders, but where the Spyder is somewhat toned down, the Mission X leans into its chunky corner details, instead making it a big part of the design that extends to the roof.<...