Fresh images of the four-door Porsche Panamera were snapped ahead of the car's testing session at Germany's Nürburgring.
The Panamera clearly shows design influences carried over from its illustrious 911 sibling. However, it won't be fitted with a rear-engined boxer and rather a selection of front-mounted engines.
Powerplants are said to range from Volkswagen's 221-kW 3.5 V6 to naturally aspirated and turbocharged versions of Porsche's own eight cylinder petrol unit producing 260 kW to 415 kW in its various guises.
Expect a dual-clutch transmission to be in use, and the range-topping model could be fitted with a version of the discontinued Carrera GT's V10.
It is promised that the Panamera will be a true family sportscar, with enough go but space for four adults, easy access to the rear seats and a useable luggage compartment.
Panamera will be unveiled at the 2009 Geneva show. Its main rivals will likely be the Mercedes-Benz CLS 63 AMG, Maserati Quattroporte and the upcoming Aston Martin Rapide.