Key styling changes include the adoption of a shallower windscreen and a more heavily curved roofline that extends back to form an integral part of a large liftback-style tailgate.
Redesigned rear doors and wider bumpers increase overall width by 18mm, while the rear numberplate has been repositioned into the rear bumper.
As with the regular Cayenne, the Cayenne Coupé has an active rear spoiler element. It works in combination with a roof spoiler, extending by 135mm at speeds above 56mph to provide added downforce.
“The Coupé includes all the technical highlights of the current, third-generation Cayenne but has a design that is more progressive, athletic and emotional,” said Porsche boss Oliver Blume.
Inside, the Cayenne Coupé has a four-seat layout with individual seats up front and a newly designed rear bench of two individual seats divided by a centre armrest. Customers can opt for a three-seat rear bench at no additional cost, however.
Rear occupants sit 30mm lower than in the Cayenne, freeing up more rear head room despite the sloping roofline, according to Porsche.
Boot capacity is put at 625 litres, rising to 1540 litres when the rear seats are folded down. This is 145 litres and 170 litres less than the Cayenne. The Cayenne Coupé Turbo has slightly less space, at 600 litres and 1510 litres.