Porsche 917 returns?

Porsche just released this teaser prominently featuring a 1971 917... 1971-2011, 40 years... A new super car coupe, something Porsche has nit done since the GT1... The spider was the 918... Porsche arranged for a Gulf liveried 917 to greet journalists and tweeters in a Detroit hotel lobby...
Who knows, maybe they really did go with their most iconic racing number ever.

What it looks like from the tease is that the show car will sport the same number 22 as the all conquering 71 Martini Porsche 917. Swing doors, sidepipes and what looks like huge wing. Bosch stickers hint at its hybrid nature... We'll find out soon enough!

UPDATE: and the answer is....check after the jump!







Porsche 918 RSR – racing laboratory with even higher-performance hybrid drive


Stuttgart. Dr. Ing. h.c. F. Porsche AG, Stuttgart, is continuing to extend its performance and high efficiency competence via intensive development work in the field of hybrid technology. With the Porsche 918 RSR, the manufacturer of sporty premium vehicles is presenting a high-end synthesis of 2010's successful hybrid concepts. The two-seater mid-engine coupé 918 RSR clearly reveals what happens when the technology fitted in the 911 GT3 R hybrid and the design of the 918 Spyder are transferred to a modern, innovative super sports car.

With its highly-efficient flywheel accumulator, the 911 GT3 R hybrid racing car proved to be an attention magnet during competition racing on the Nürburgring Nordschleife circuit, during the American Le Mans Series races (ALMS) in Road Atlanta/USA and the ILMC run in China's Zhuhai. It demonstrated its massive performance potential under realistic motor racing conditions against top competitors. The 911 GT3 R Hybrid, referred to internally as the "Race Lab" actually surpassed the high expectations of Porsche Motorsport. Competitiveness, high reliability and exemplary fuel efficiency combined with top performance underscored the Porsche technicians' basic idea of generating additional power in an intelligent manner. The 911 GT3 R Hybrid obtains its additional power from its own vehicle dynamics when braking. Porsche is now transplanting this technology into the mid-engine coupé 918 RSR, the motor sports version of the 918 Spyder concept car.

From the tradition established by classic Porsche long-distance race cars such as the 908 long-tale coupé (1969) and the 917 short-tail coupé (1971), the Porsche designers created a link to the postmodernism of the "form follows function" philosophy. In the 918 RSR, the lines' elegant flow is dominated by muscular wheel arches, dynamic air intakes and a pulpit-like cockpit. A visible fan wheel between the ram air intake tubes and a rear spoiler with RS Spyder dimensions additionally emphasise the racing laboratory function. The new "liquid metal chrome blue" colour which has been created underscores the sculptured curves of the forms, whilst the typical Porsche hybrid orange colour on brake calipers and the body's longitudinal stripes lends remarkable touches.

Motor racing technology also dominates within the particularly light, torsionally stiff carbon fibre-reinforced plastic (CFRP) monocoque. The V8 engine is a further development of the direct injection engine from the successful RS Spyder race car and now offers an output of precisely 563 hp at 10,300/rpm in the 918 RSR. The electric motors on the two front wheels each contribute 75 kW, i.e. a total of 150 kW, to the peak drive power of exactly 767 hp. This additional power, which is generated during braking, is stored in an optimised flywheel accumulator.

In the 918 RSR, the two electric motors offer a torque vectoring function with variable torque distribution to the front axle. This additionally increases agility and improves steering response. Mounted upstream of the rear axle, the mid-engine is integrated with a racing transmission also based on the RS Spyder race car. This further developed six-speed constant-mesh transmission with longitudinally mounted shafts and straight-toothed spur gears is operated using two shift paddles behind the racing steering wheel.

The vehicle's functional equipment underscores its puristic motor racing character. Whether it be the characteristic doors which open obliquely upwards, the air intake in the roof between the wing doors, the quick-action locks on the front and rear CFRP lids, the two roof-mounted aerials for pit radio and telemetry, the RS Spyder-like small, lateral front flics or the air splitters beneath the front lip or no-profile racing slicks on 19" wheels with central locking, the vehicle can be clearly recognised as an experimental racing laboratory.

In contrast to the 918 Spyder concept car, unadorned racing atmosphere predominates in the interior of the 918 RSR. The figure-hugging bucket seat's brown leather covering cites the history of the gentleman driver; the gear flashes on the racing steering wheel and a recuperation display on the steering column in front of the display screen supply the pilot with information. Instead of the futuristic, ergonomically avant-garde centre console with touch-sensitive user interface from the 918 Spyder concept car, the 918 RSR's cockpit is split by a minimalistic console with rocker switches. Instead of a second seat, the flywheel accumulator is positioned to the right of the console.

This flywheel accumulator is an electric motor whose rotor rotates at up to 36,000 rpm to store rotation energy. Charging occurs when the two electric motors on the front axle reverse their function during braking processes and operate as generators. At the push of a button, the pilot is able to call up the energy stored in the charged flywheel accumulator and use it during acceleration or overtaking manoeuvres. The flywheel is braked electromagnetically in this case in order to additionally supply up to 2 x 75 kW, i.e. a total of 150 kW, from its kinetic energy to the two electric motors on the front axle.

This additional power is available for around eight seconds when the system is fully charged. In the successful 911 GT3 R Hybrid, this additional power can also be used as a consumption aid depending on the racing situation, e.g. to delay pit stops or reduce the fuel tank volume and therefore the weight of the vehicle.

With the new 918 RSR racing laboratory, Porsche is now elevating this motor racing hybrid concept to an experimental level. In the 918 RSR, "Porsche Intelligent Performance" equates to research into methods for further sustainable efficiency improvement under the intensified conditions of the race track, lap times, pit stops and reliability – a metier in which Porsche has been demonstrating its success for over 60 years.

Finally, the starting number, 22, pays homage to the anniversary of a further triumph. Back in the days when overall victories in Le Mans were not yet an entirely routine matter within the Porsche racing department, the pilots Dr. Helmut Marko and Gijs van Lennep were the first to cross the finishing line in 1971's 24-hour classic. The distance record set by their Porsche 917 short-tail coupé – 5335.313 kilometres (3315.21 miles) at an average speed of 222.304 km/h (138.13 mph) – did not remain unbeaten for an eternity, but for exactly 39 years until 2010. At the time, the 917 in the Martini colours was also an experiment and far ahead of its time: a magnesium space frame set new standards in Porsche's lightweight construction domain.

Porsche 918 Spyder Hybrid Concept

(photos: autoblog.it)
1450KG/3200 lbs... compare and contrast.


PRESS RELEASE: Porsche Reveals High-Performance 918 Spyder Concept

Today, on the eve of the Geneva Motor Show, Porsche unveiled an ultra-efficient, low-emission, mid-engine super sports car featuring hybrid and electric drive technology.

The 918 Spyder concept combines high-tech racing features with electric-mobility to offer a fascinating range of qualities. For example, it is planned to provide an emission level of just 70 grams of CO2 per kilometer on fuel consumption of only three liters/100 kilometers (equal to approximately 78 mpg U.S.), which is truly outstanding, even for an ultra-compact city car. This car, however, is intended to offer the performance of a super sports car with acceleration from a standstill to 100 km/h in just under 3.2 seconds, top speed of 320 km/h (198 mph), and a lap time on the Nordschleife of N�rburgring in less than 7:30 minutes, faster than even the Porsche Carrera GT.

The 918 Spyder is one of three Porsche models with hybrid drive making their world debut at the 2010 Geneva Motor Show. This trio, made up of Porsche's new Cayenne S Hybrid SUV with parallel full-hybrid drive, the 911 GT3 R Hybrid race car with electric drive on the front axle and a flywheel mass battery, and the two-seater high-performance 918 Spyder mid-engined sports car with plug-in hybrid technology, clearly demonstrates not only the great bandwidth of this new drive technology, but also the innovative power of Porsche as a genuine pioneer in hybrid drive.

The highly-innovative 918 Spyder concept car combines Porsche's Intelligent Performance philosophy with the high-technology from motorsport, with classic but modern design to make a truly convincing statement.

Innovative powertrain combines race-bred V8 engine with electric drive

This open two-seater is powered by a high-revving V8 developing more than 500 horsepower and a maximum engine speed of 9,200 rpm, as well as electric motors on the front and rear axle with overall mechanical output of 218 horsepower (160 kW).

The V8 combustion engine is the next step in the evolution of the highly successful 3.4-liter power unit already featured in the RS Spyder racing car and positioned mid-ship, in front of the rear axle, giving the car excellent balance and the right set-up for supreme performance on the race track.

Power is transmitted to the wheels by a seven-speed Porsche-Doppelkupplungsgetriebe (PDK) transmission that feeds the power of the electric drive system to the rear axle. The front-wheel electric drive powers the wheels through a fixed transmission ratio.

The energy reservoir is a fluid-cooled lithium-ion battery positioned behind the passenger cell. The big advantage of a plug-in hybrid is that the battery can be charged on the regular electrical network. A further point is that the car's kinetic energy is converted into electrical energy fed into the battery when applying the brakes, thus providing additional energy for fast and dynamic acceleration.

Driver's choice of four distinct driving modes

A button on the steering wheel allows the driver to choose among four different running modes: The E-Drive mode is for running the car under electric power alone, with a range of up to 25 km or 16 miles. In the Hybrid mode, the 918 Spyder uses both the electric motors and the combustion engine as a function of driving conditions and requirements, offering a range from particularly fuel-efficient all the way to extra-powerful.

The Sport Hybrid mode uses both drive systems, but with the focus on performance. Most of the drive power goes to the rear wheels, with Torque Vectoring serving to additionally improve the car's driving dynamics.

In the Race Hybrid mode the drive systems are focused on pure performance with the highest standard of driving dynamics on the track, running at the limit to their power and dynamic output. With the battery sufficiently charged, a push-to-pass button feeds in additional electrical power (E-Boost), when overtaking or for even better performance.

With the hybrid drive system offering this wide range of individual modes and applications, the 918 Spyder is able either to achieve lap times comparable to those of a thoroughbred racing car, or the extremely low emissions and high fuel economy figures of a plug-in hybrid.

Advanced body structure and design offer more than just good looks

Like the drivetrain, the lightweight body structure of the Porsche 918 Spyder also bears out the car's DNA carried over directly from motorsport: The modular structure with its monocoque bodyshell made of carbon-fiber-reinforced plastic (CFP) and liberal use of magnesium and aluminum not only reduce weight to below 1,490 kg, or 3,285 lb, but also ensure supreme driving precision thanks to a high level of torsional stiffness.

Reminiscent of highly successful, legendary racing cars such as the Porsche 917 and the current Porsche RS Spyder, the 918 Spyder, with its design concept so typical of Porsche arouses powerful emotions. The combination of racing car dimensions, clearly structured design with perfectly balanced surfaces, and innovative details throughout, creates an ideal synthesis of form and function, following Porsche's design DNA.

The smooth balance of tradition and progress gives the car a powerful stance on the road. Variable aerodynamics, typical of Porsche, ensures both visionary and traditional highlights especially around the rear spoiler. The striking rear hoods extending out of the headrests, in turn, not only fulfill an aerodynamic function on the 918 Spyder, but also accommodate retractable air intakes with a ram air function.

High-tech interior provides glimpse into the future

The driver and passenger are not only embedded in contoured sports bucket seats but also form part of the cockpit, which provides a synthesis of efficient functionality and ergonomic high-tech operation. Additionally, the cockpit offers a glimpse at the potential interior architecture of future Porsche super sports cars. The three free-standing circular dials for road speed (left), engine speed (middle) and energy management (right) would appear to come directly from a racing car in the '60s, bearing out that unique philosophy of driver orientation so characteristic of Porsche.

The center console rises up towards the front in the 918 Spyder and houses a touch screen for intuitive control of the car's functions, serving to reduce the number of visible controls and maintain the principle of direct operation.

The control units relevant to the driver are mainly concentrated on the three-spoke multifunction sports steering wheel, while the variable driving modes are supplemented by a switch enabling the driver to call up various drive programs and serving as the push-to-pass button for E-boosting. Instrument illumination, finally, varies from green for the consumption-oriented running modes to red for the performance-oriented driving programs.

The Porsche 918 Spyder concept also comes with further innovative functions such as the Range Manager. After being activated in the Center Display, the Range Manager uses the map in the navigation system to present the remaining range the car is able to cover, naturally allowing the driver to influence that range through the appropriate choice of power and performance.

In cities with environmental alert areas the Range Manager also states whether the driver is able to reach a certain destination on electric power alone.

Applying this information and using further info on the availability and location of special energy filling stations, the driver is then able to choose his personal style of driving as well as the right battery charge and filling strategy.

Offering a unique combination of extremely low fuel consumption, supreme performance and long electric range, the Porsche 918 Spyder concept represents an essential milestone in Porsche's strategy on the way to genuine electric-mobility.

In cities with environmental alert areas the Range Manager also states whether the driver is able to reach a certain destination on electric power alone.

Applying this information and using further info on the availability and location of special energy filling stations, the driver is then able to choose his personal style of driving as well as the right battery charge and filling strategy.

Offering a unique combination of extremely low fuel consumption, supreme performance and long electric range, the Porsche 918 Spyder concept represents an essential milestone in Porsche's strategy on the way to genuine electric-mobility.