Powered solely by electric motors, the Mission E is capable of blasting to 100km/h in under 3.5 seconds thanks to its 441kW -plus combined power output, and can travel for over 500km on a single charge.
The Tesla Model S P90D with Ludicrous Mode pips it to 100km/h by half a second, however.
Porsche has a trump card in the form of the Mission E's claimed 15-minutes-to-80-percent charge time, though. Using a fast charger, the Model S takes 20 minutes to achieve a 50 percent charge state.
How is the Porsche so much quicker to charge? According to the company, the Mission E's 800-volt charging system boasts double the voltage of existing EVs and can cram electrons into its lithium-ion batteries much faster as a result.
Porsche says it employed much of its experience developing the 919 Hybrid race car in the Mission E's development, with the concept car's two electric motors (one for the front wheels, one for the rear) similar to those used by the Le Mans racer.
Torque vectoring and all-wheel steering help the sleek four-door concept handle corners, and Porsche claims a sub eight-minute Nurburgring lap time.
Race-derived tech has also been applied to the chassis, which is constructed out of aluminium, steel and carbon fibre to achieve significant weight savings over a conventional steel body - a crucial consideration for any battery-electric vehicle.
Its lithium-ion batteries are also mounted low in the chassis to keep the centre of gravity as low as possible to further aid handling. Drag is kept down by the Mission E's low-slung body - it measures just 130cm tall.
And as a curvaceous four-door, four-seat fastback, it's also a tantalising glimpse of what could become the second-generation Panamera. If you ever had qualms about the way the first-gen model looked, the Mission E may soothe your eyeballs.
It also provides some insight into what Porsche interiors may look like in the near future. Its four-seat layout may be classic Panamera, but its holographic display and gesture-operated infotainment controls are definitely cutting-edge.
As for a production future for the Mission E, we've yet to hear of one. However, with many other luxury manufacturers about to throw their respective hats into the pure-EV ring, Porsche may soon follow suit with a car like the Mission E.
But even if it doesn',t it's not unreasonable to expect the Mission E's sleek styling to be applied to a future Porsche four-door like the second-gen Panamera or the smaller "Pajun" that has been rumoured since 2011. Watch this space.