When designing the 928, which went into series production as of model year 1978, the focus was on lightweight construction. The doors, front wings and bonnet were therefore made from aluminium instead of sheet steel. Behind the plastic bumpers integrated in the body shape there were also aluminium profiles that could withstand a collision at up to 8 km/h (5 mph) without any damage.
The 928 had round, electrically operated pop-up headlights that were integrated in the wings. The rounded fastback was dominated by the large window of the rear lid.
The 928 models were powered by a water-cooled V8 engine with a 90° cylinder arrangement. The displacement of the power unit was increased from an initial 4.5 litres to 5.4 litres. Power was transmitted according to the transaxle principle.
To improve aerodynamics, the models were fitted with a front and rear spoiler from type 928 S (MY 1979) onwards.
The rear axle of the 928 was a completely new development. What made this double-wishbone suspension – also known as the Weissach axle – unique was its toe-in stabilising effect. This worked more or less as a passive rear-wheel steering and thus made a significant contribution to the active safety of the Gran
928 GT (Spring 1989-MY 1991)
The 928 GT was sportier than the 928 S4. Thanks to various modifications, its power unit generated up to 330 hp. The GT was delivered as standard without side protection strips and with wheels in a unique design.
928 GTS (MY 1992-95)
The last evolutionary stage of the 928 model featured flared rear wings, a red light panel at the rear, a rear wing painted in exterior colour, exterior mirrors in the Cup design plus 17" Cup rims as standard. The 5.4-litre engine of the GTS generated 350 hp.
Pop-up headlights with visible lenses // Rear lid with large rear window // Front and rear aprons made of deformable plastic // Rounded front apron with air intakes for brake cooling // Rear wing made of black polyurethane // Side skirts in exterior colour // Side direction indicators // Twin tailpipe // Option: Side protection strips in exterior colour
Pop-up headlights with visible lenses // Rear lid with large rear window // Front and rear aprons made of deformable plastic // Rounded front apron with air intakes for brake cooling // Flared wheel arches at rear // Rear wing in exterior colour // Red light panel at rear // Side skirts in exterior colour // Side direction indicators // Exterior mirrors in Cup design // Twin tailpipe
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* Data determined in accordance with the measurement method required by law. Since 1 September 2017 certain new cars have been type approved in accordance with the Worldwide Harmonised Light Vehicles Test Procedure (WLTP), a more realistic test procedure to measure fuel/electricity consumption and CO₂ emissions. As of 1 September 2018 the WLTP replaced the New European Driving Cycle (NEDC). Due to the more realistic test conditions, the fuel/electricity consumption and CO₂ emission values determined in accordance with the WLTP will, in many cases, be higher than those determined in accordance with the NEDC. This may lead to corresponding changes in vehicle taxation from 1 September 2018. You can find more information on the difference between WLTP and NEDC at www.porsche.com/wltp.
Currently, we are still obliged to provide the NEDC values, regardless of the type approval process used. The additional reporting of the WLTP values is voluntary until their obligatory use. As far as new cars (which are type approved in accordance with the WLTP) are concerned, the NEDC values will, therefore, be derived from the WLTP values during the transition period. To the extent that NEDC values are given as ranges, these do not relate to a single, individual car and do not constitute part of the offer. They are intended solely as a means of comparing different types of vehicle. Extra features and accessories (attachments, tyre formats, etc.) can change relevant vehicle parameters such as weight, rolling resistance and aerodynamics and, in addition to weather and traffic conditions, as well as individual handling, can affect the fuel/electricity consumption, CO₂ emissions and performance values of a car.
** Important information about the all-electric