A long wheelbase version of the Porsche Panamera has been revealed at the Shanghai motor show.

The long wheelbase car will be available on the Panamera 4S and Panamera Turbo, and will officially be named the Porsche Panamera Executive.

The cars have an additional 15cm in the wheelbase, the vast majority of which is incorporated in the rear seat area. Wealthy Chinese are typically chauffeured, making long wheelbase versions of standard cars popular for offering greater comfort and as a status symbol.

By comparison, the long wheelbase version of the Mercedes S-class offers a wheelbase of 3165mm, around 95mm more than the new Panamera.

The additional wheelbase not only allows greater rear seat comfort, but also solves one of the Panamera’'s shortcomings among customers by allowing for a longer door aperture and therefore easier ingress and egress.

As well as the additional space, the Panamera Executive models will be sold with Porsche’s active suspension system (PASM) and active air suspension as standard.

The Panamera Executive may also be sold in America, but will not be sold in Europe.