We were lucky enough to snag some quick "back of the napkin" sketches from Mission E designers Emiel Burki and Felix Godard.

"It's important to have the right proportions between greenhouse and wheelbase," says Emiel Burki, a senior exterior designer at Porsche. "An electric vehicle promotes efficiency [so it's] important to have the right aerodynamic shape to maximize efficiency in the bodywork."

Because there is no combustion engine, there is no exhaust system, "so lines across the rear can be lower while also creating room for a large diffuser," says Burki. "Without need for an engine air intake, more freedom is allowed to affect air flow across the front and sides."

Burki found inspiration from a variety of Porsche road and race cars. The air vents behind the front wheels of the Le Mans-winning 919 Hybrid racecar influence the slickly sculpted sides of the Mission E, while the front takes cues from the 918's nose. The low-cut front hood recalls the 911 while the front wings reference the GT3 RS.

Inside is all about Porsche design principles, says Felix Godard, an advanced interior designer for Porsche. The Mission E's rising center console stresses "openness, clean architecture, driver orientation, everyday practicality," says Godard.

Porsche Mission E Concept Interior Sketch by Felix Godard

"The all-electric drive concept allows for a fully reinterpreted interior," says Godard. "The lack of transmission tunnel opens up space and yields a lighter and more open atmosphere for the entire interior."

And because it's a concept, this interior is chock full of bold design cues and innovative technologies such as holograms, gesture controls, and an eye-tracking feature.

"The eye-tracking system detects, via camera, which instrument the driver is viewing," says Godard. The system will then activate the menu for that instrument, which the driver can navigate via controls on the steering wheel. A clever parallax correction system also prevents the steering wheel from blocking the driver's view of the instrument cluster. If the driver changes position in his or her seat, displays on the car move with the driver.