Porsche has debuted its luxury sports sedan, the Panamera, at the Shanghai Auto Show.

The new four-door Gran Turismo is Porsche's fourth model series, with three variants entering the market in Germany on 12 September 2009. The Panamera is making its debut as an eight-cylinder delivering 400 and, respectively, 500 horsepower and with both rear-wheel and all-wheel drive, a six-cylinder gasoline model and a hybrid version following later.

Klaus Berning, Executive Vice-President Sales and Marketing of Porsche AG, expressed a clear view at the world debut of the Panamera: "Introducing the Panamera, we are entering a market segment completely new for our customers and we are once again consistently expanding our model portfolio."

Wolfgang Dürheimer, Porsche's Executive Vice-President Research and Development, said: "Our engineers, technicians, and designers have invested all their know-how, years of experience, a wealth of ideas, and their full passion for sports cars in this four-seater Gran Turismo."

Porsche says the Panamera is introducing five 'outstanding innovations in technology as world premieres to be admired for the first time in the luxury performance class'. Among them are a Start-Stop system in conjunction with automatic transmission, air suspension with additional air volume available on demand in each spring, as well as active aerodynamics with an adjustable, multi-dimensional, extendable rear spoiler on the Panamera Turbo.

All models in the Panamera range come with Porsche Direct Fuel Injection, low-friction drive systems, and weight-optimised lightweight bodies.

The customer can choose among steel suspension or adaptive air suspension with a fully-controlled damper system.