Porsche has announced an electric version of its popular Cayenne Coupé and it could be the company's most powerful vehicle ever — either ICE or electric. Mechanically, the Cayenne Coupé Electric is nearly identical to the Cayenne Electric but the body is substantially sleeker for improved range and performance. While the front end of the Coupé looks much the same as the Cayenne Electric, the back is giving off BMW X-series vibes in a big way. Porsche says that bulbous rear makes the new model more aerodynamic and thus efficient, with a drag coefficient of just 0.23. It also sits nearly an inch lower than the standard SUV for a more race-ready look. It can haul four adults and comes with a 3.2 cubic foot frunk. Porsche There are three versions: the Cayenne Coupé Electric, Cayenne S Coupé Electric and Cayenne Turbo Coupé Electric. All use the same 800-volt architecture that allows charging speeds up to 400 kW, for a 10-80 percent recharge in 16 minutes under ideal conditions.…