The 9ff GT9 is a sports car based loosely on the Porsche 911, built by German tuning company

9ff 9ff is a German car tuning company based in Dortmund. It was founded by Jan Fatthauer in 2001. It specializes in converting stock Porsches into street legal racing vehicles, either as fully tuned cars, or by selling individual parts or kits. The ...

, founded by Jan Fatthauer. Based on the Porsche 911 (997) GT3; the cars are extensively rebuilt and fitted with a heavily modified 3.6-4.0 litre flat 6 engine that produces , depending on the configuration. One of the major differences from a normal 911 is the positioning of the engine; whilst every 911 throughout Porsche's history (excluding the

Porsche 911 GT1 The Porsche 911 GT1 is a car designed and developed by German automobile manufacturer Porsche AG to compete in the GT1 class of sportscar racing, which also required a street-legal version for homologation (motorsport), homologation purposes. The ...

race car) has been

rear-engined In automobile design, a rear-engine design layout places the engine at the rear of the vehicle. The center of gravity of the engine itself is behind the rear axle. This is not to be confused with the center of gravity of the whole vehicle, as an ...

, the GT9 is

mid-engined In automotive engineering, a mid-engine layout describes the placement of an automobile engine in front of the rear-wheel axles, but behind the front axle. History The mid-engine, rear-wheel-drive format can be considered the original layout of ...

for better weight distribution. It takes the 9ff 3.8 seconds (from a rolling start) or 4.2 seconds (from a standing start) to reach , and 17.6 seconds to reach . The top speed of the original GT9 is . This was faster than the original

Bugatti Veyron The Bugatti Veyron EB 16.4 is a mid-engine sports car, designed and developed in Germany by the Volkswagen Group and Bugatti and manufactured in Molsheim, France, by French automobile manufacturer Bugatti. It was named after the racing driver P ...

, but slower than both the SSC Ultimate Aero TT and the Bugatti Veyron Super Sport. The interior of the car has been stripped out for lightness and thus was very basic compared to a standard 911 GT3. All GT9s had blue leather, square-patterned interior trim, with a

roll cage A roll cage is a specially engineered and constructed frame built in (or sometimes around, in which case it is known as an exo cage) the passenger compartment of a vehicle to protect its occupants from being injured or killed in an accident, pa ...

for safety. A

carbon fibre Carbon fiber-reinforced polymers (American English), carbon-fibre-reinforced polymers (Commonwealth English), carbon-fiber-reinforced plastics, carbon-fiber reinforced-thermoplastic (CFRP, CRP, CFRTP), also known as carbon fiber, carbon compo ...

and

Kevlar Kevlar (para-aramid) is a strong, heat-resistant synthetic fiber, related to other aramids such as Nomex and Technora. Developed by Stephanie Kwolek at DuPont in 1965, the high-strength material was first used commercially in the early 1970s a ...

construction helps further in weight savings. 9ff stated that only 150 GT9s would be produced, and only 20 of those would have the most powerful engine. Prices ranged between £150,000 and £540,000 depending on engine and options, with all of them already sold by the time the car was launched in the market.

9ff GT9-R

The GT9-R was a high performance variant of the GT9, offering up to from a 4.0L

twin-turbocharged Twin-turbo (not to be confused with a twincharger setup, which is a combination of a supercharger and a turbocharger) refers to an engine in which two turbochargers work in tandem to compress the intake fuel/air mixture (or intake air, in the case ...

flat-6 engine. It was designed to take the speed record for a street legal car from the Bugatti Veyron, with a claimed speed of , although this was never tested. It accelerates from 0– in 2.9s and 0– in under 16s. Only 20 examples of the GT9-R were produced.

9ff GT9-CS

At the 2011 Essen Motor Show, 9ff brought out the third version of the car, the GT9-CS, built as a one-off. This car used the Stage 1 3.6L twin-turbocharged flat-6 engine, thus producing , and was designed specifically as a track-day car. A further of weight was removed from the car, and several changes were made - a new rear wing, front splitter, and revised air intakes.

9ff GT9 Vmax

At the 2012 Essen Motor Show, 9ff revealed their new Vmax variant of the GT9 which produced and 855 lb-ft (1,160 Nm) of torque from a 4.2-liter twin-turbocharged flat-six. This variant of the GT9 weighed and was said to reach a top speed of . At the time of release, this variant cost €895,000.

References

{{reflist 9ff GT9-R