The Porsche 991 is the internal designation for the seventh generation of the Porsche 911 sports car, which was unveiled at the 2011 Frankfurt Motor Show on 15 September as the replacement for the 997. The 991 was an entirely new platform, only the third since the original 911 launched in 1963 (the 996 of 1999 was the second new platform). Production of the 991 generation ended on December 20, 2019, with 233,540 units produced.  

Compared to the 997, the 991 is slightly larger, with the wheelbase increased by 100 mm (3.9 in) to 2,450 mm (96.5 in), and the overall length up by 70 mm (2.8 in) to 4,490 mm (176.8 in).  A new transaxle was developed so that the rear wheels could be moved 76 mm (3 in) backward in relation to the position of the engine, which significantly improves the weight distribution and cornering performance of the car.

Due to the use of high-strength steel, aluminium and some composites, the weight was reduced to 1,380 kg (3,042 lb) for the manual Carrera, rising to 1,605 kg (3,538 lb) for the all wheel drive Turbo model if equipped with the PDK transmission (Porsche Doppelkupplung). PDK is available as an option for all 911 Carrera and 991.1 Turbo (Non S) models as a 7-speed transmission, featuring manual and automatic modes. Gears 1 to 6 have a sports ratio and top speed is reached in 6th gear. 7th gear has a long ratio and helps to reduce fuel consumption by keeping engine revs low. The PDK is essentially two gearboxes merged into a single unit and thus requires two clutches. For all 991 models, the PDK is produced by ZF Friedrichshafen. The auto start/stop function is standard on all variants of the 911 Carrera.

Jasmine PorschaLink UK are the UK’s leading Independent Porsche Specialist, with over 21 years of Porsche technical knowledge and experience we strive to offer Porsche 997 C2S/C4S Gen 1 servicing and maintenance to an exceptionally high standard, using the very latest Porsche Specialist Diagnostic equipment and OEM parts.

We offer simple menu priced servicing at our purpose built facility in Lancashire.  All work undertaken is carried out in line with the current Porsche guidelines, with only Genuine Porsche or OEM parts and Porsche approved oils used.