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Based on the already primal 997.2 GT3, the RS gets another 15 hp from the 3.8-liter flat-six for a total of 450, or more than 118 hp per liter. A racing machine tamed for street use, the GT3 RS is hardly just about horsepower. It gets a wider track, it weighs less, and it produces more downforce than the GT3. The only available transmission is a six-speed manual gearbox (with the ratios even shorter than the GT3). A racing machine tamed for street use, the GT3 RS also gets a wider track, it weighs less, and it produces more downforce than the GT3.
The 997 Sport Classic is a limited edition version of the 997.2 Carrera S coupé inspired by the 1973 Carrera RS 2.7. The engine is rated at 413 PS (304 kW; 407 hp) and features a newly developed resonance intake manifold with 6 vacuum-controlled switching flaps. It includes a 6-speed manual transmission, double-dome roof (informally called double bubble roof), 44 mm (1.7 in) wider rear fenders, SportDesign front apron with a front spoiler and a fixed 'duck tail' rear wing. Only 256 were made.
Even more powerful, faster and more dynamic than ever before, the updated 997 Porsche 911 GT3 (differentiated from the earlier with a new 997.2 designation) is about to prove its enhanced potential. The Porsche 911 GT3 now reaches an even higher standard in its two main qualities: power and driving dynamics. The naturally-aspirated six-cylinder now increased in size to 3.8 litres is 435 bhp (320 kW), up 20 bhp over the previous model. In particular, the flat-six power unit carefully upgraded for even more muscle and performance offers a significant increase in torque at medium engine speeds. Road performance is spectacular.
The 911 Carrera Cabriolet is a true Porsche, from top to bottom. Like the rest of the range, the base Cabriolet got a mild refresh in terms of design that made it more modern and a little more crisp. The engine was upgraded, now with direct direction. The direct-injection 3.6-liter engine also got new air filters, a more free-flowing exhaust system, and reduced engine friction, making it more powerful than before. It has peak power of 339 bhp @ 6500 rpm and torque of 287 ft lbs @ 4400 rpm. The Carrera equipped with PDK covers 0-60 mph in 4.5 seconds and runs to a top speed of 179 mph.
The 997.2 Turbo was introduced for the 2010 model year and received a new 3.8 litre engine capable of 493 horsepower, a significant evolution as compared to the 473hp in the 997.1 Turbo. The 997.2 Turbo was available in both manual and automatic transmissions, but the automatic evolved from the Tiptronic used in its predecessor, to a sportier dual-clutch PDK. Approximately 3,300 coupes were produced and 1,800 cabrios, far less than its predecessor. An epic all-around GT with more performance than you could ever need.
While the 997 Carrera 4S coupe sold a healthy 15,056 units between 2006 and 2008, the equally exciting Carrera 4S Cabriolet sold 12,587 units, making it a pretty popular 997 model. The reason is pretty simple. It had a gorgeous wide-body stance, all-wheel drive traction and that potent 3.8 L Flat 6 that was good for 350 bhp and 295 ft lbs of torque. The first convertible 911 that was as good a performer as it coupe siblings with the added benefit of open top driving in the summer with the comfort of being a great daily driver all year round. 
Paying homage to the first Porsche model that bore the name Speedster – the 356 Speedster – the production run for the new model is limited to 356 cars. The two-seater is significantly different from the other members of the 911 family. In the best tradition, the 60 millimetre lower, more raked windscreen, the flat contour of the sporty-look manual hood, and the characteristic double-bubble hardcover for the soft top define the striking profile of the new 911 Speedster. This makes the body of this rear-wheel drive with its 44 millimetre wider rear stand out even more.
The 997 911 GT3 RS is an even lighter and more purist version of the 911 than the regular GT3. 20 kilograms lighter than the GT3 and equipped with a close-ratio six speed manual the GT3 RS gets to 60 mph 1/10th of a second faster than the GT3. The 911 GT3 RS is 44mm wider at the rear than the GT3. The wider track helps improve directional stability when cornering. Weight savings can be found throughout the car. The Clubsport version there is a bolted roll cage, a six-point harness for the driver and a built in fire extinguisher. 
Porsche’s 911 GT2 RS is a brute, a lightweight, twin-turbocharged, 620-hp bout of madness that stemmed from Stuttgart’s quest to see how high up the sports-car ladder the 911 could punch. It is the most serious roadgoing Porsche ever. The engine is a port-injected, 3.6-liter flat-six from the Le Mans–winning GT1 race car of the late ’90s, with a pair of variable-geometry turbochargers huffing a maximum of 23.2 psi of boost into the combustion chambers. The result is 620 hp at 6500 rpm and 516 lb-ft of torque at 2250. It gets a six-speed manual gearbox and rear-drive only. Yikes.
Porsche has announced the introduction of the new 2007 911 GT3 RSR (type 997) for the American Le Mans Series and other world GT racing venues. The latest version of the most successful racing sports car in history is based on the street production model 911 GT3 RS (model year 2007) and was launched in late 2006. The 911 GT3 RSR has wider rear fenders and rear track to improve performance capabilities over its predecessor. The car has also been developed to fit into the 1,225 kg class. The new car is built in accordance with the ACO LMGT2 Regulations and the FIA Article 257.
During the Geneva Motor Show, a Porsche 911 GT3 R with innovative hybrid drive is making its debut. The innovative hybrid technology featured in the car has been developed especially for racing, standing out significantly in its configuration and components from conventional hybrid systems. In this case, electrical front axle drive with two electric motors developing 60 kW each supplements the 480-bhp four-litre flat-six at the rear of the 911 GT3 R Hybrid. Instead of batteries, an electrical flywheel power generator delivers energy to the electric motors.
Porsche 911 GT3 R Hybrid 2.0 (2011)
The Porsche 997 GT3 R Hybrid 2.0 is an update to the 997 GT3 R Hybrid. Compared to its predecessor, which debuted in 2010, the 2011 second-generation hybrid is 20 percent lighter and more efficient without any concession to lap times. While sharing the same paint scheme, the new vehicle is easily identified by its lack of intakes in front of each rear wheel - changes to engine cooling allowed the slats to be dropped and aerodynamic efficiency improved. It gets a traditional race-bred flat six engine. The GT3 R Hybrid has a completely independent second driveline in the front of the chassis, a clever and complex hybrid electric set up that rockets it from standstill to 60 mph in just 2.5 seconds.
Along with its sibling Carrera 4, the 2005 Carrera 4S offered an all-wheel-drive system for the Porsche 911, but unlike the 4, the 4S gets the Carrera S' more powerful engine and it turns out that makes a big difference. The Carrera 4S was the more powerful and more dynamic version of the 997 Carrera 4 and an overall great sports car, especially for those in colder climates who need the safety of all-wheel traction. All rounder that fits nicely in the 911 lineup as perhaps the most practical.
The Cabriolet version of the new Porsche 911 Carrera 4 GTS is just as potent as its coupe sibling. It combines a 408 hp 3.8-litre flat six engine with intelligent all-wheel drive that delivers a further exhilarating dimension to the dynamics of the iconic rear-engined sports car. The 911 was first offered with four-wheel drive in 1989 and the drivetrain has been a popular option ever since. Now, the 911 Carrera 4 GTS broadens customer choice in 2011, building on the success of the two-wheel drive Carrera GTS that went on sale in December last year. Carrera 4 GTS power unit is the 3.8-litre flat six with power kit.
The 2008 Porsche 997 GT2 is the most powerful and fastest roadgoing 911 Porsche has ever created. Power for the 997 GT2 comes from a 3.6 litre, twin-turbo, flat-6 cylinder engine which develops 530 bhp @ 6500 rpm, and a tire destroying 505 lb-ft of torque @ 2200 - 4500 rpm. most of the power gains have been achieved with changes to the turbo-charging system and the addition of a high-flow titanium exhaust system. Power is transferred to the rear wheels of through a 6-speed manual giving the car a 0-60 mph time of just 3.6 seconds and a 204 mph top speed.
In 2011, Porsche China released a special limited edition model to celebrate an active decade in the Chinese market. The Porsche 10 Year Anniversary Edition is yet another 911 of only ten copies, each with a stylish plaque with the chassis number. The Porsche has a Gold Bronze Metallic paint, combined with matte black carbon components such as the hood, rear wing, tailgate and side mirrors. Underneath, you will spot a 911 Turbo S. The interior is a combination of black with gold stitching leather, alcantara and carbon.
For 2009, engine power is distributed to all four wheels via the same electronically controlled Porsche Traction Management system found previously only on the Porsche Turbo. The electronic controls respond to driving conditions even more instantaneously than the previously used hydraulically activated all-wheel drive system. The Carrera 4S model, with a 3.8-litre engine developing 355 bhp, can go from 0 to 60 mph in 4.5 seconds and has a top speed of 185 mph.
The GTS was powered by the same engine that was installed under the limited-edition Porsche 911 Sport Classic, but it was offered with more options. It wasn't just a driver's car, it was built for the passenger as well, with more options for comfort. From the outside, the Carrera GTS Cabriolet featured the same wide body as the Carrera 4 Cabriolet. At the front, the sport design apron featured a black lip-spoiler underneath. The Carrera GTS logo was painted on the doors. In the back, the car was fitted with LED taillights and four-round exhaust pipes. The 19” light-alloy wheels with central log-nut were fitted as standard.
Porsche refers to it as a new generation, even though the internal chassis code 997 remains unchanged. The 997.2 therefore is more of a mid-term facelift with some significant technological changes. Notably, the water-cooled flat-six engines get direct-injection technology, and a seven-speed, dual-clutch transmission replaces the previous five-speed Tiptronic automatic while the shift-it-yourself option remains a six-speed. Base Carrera coupe gets 339 bhp and 287 ft lbs and a 0.3 second faster 0 - 60 mph time of 4.5 seconds. Top speed now 179 mph. A nice update indeed.