The new Cayenne S Electric slots between the entry level Cayenne Electric and the high performance Turbo Electric, both of which were released late last year. The dual-motor S Electric will have an output of 536 horsepower, which jumps to 657 hp when using Launch Control. And it will start at $126,300 when it goes on sale this summer, as compared to $165,350 for the Turbo Electric. Giddyup.