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Introducing this new top-of-the-range model, Porsche is once again placing a 911 Turbo Cabriolet right at the top of the family after a break of 14 years: From 1987 - 1989 the Porsche 930, as the first Turbo was code-named within the Company, set the first milestone in the history of these outstanding open-air sports cars. With cylinders still featuring two valves each at the time, the 3.3-litre power unit driving the first Turbo Cabriolet offered maximum output quite unique at the time of 300 bhp or 221 kW. Acceleration from 0 to 100 km/h was in 5.2 seconds and the car had a top speed of 260 km/h or 161 mph.
The 996 GT3 RS was a sharpened version of the Mk.2 GT3, built for track use and it was the homologation model for the GT3 race-car. It was the forbidden fruit for the U.S. and Canadian customers. It was available in a limited number and it was a true track-oriented vehicle. It was based on the GT3 version, but with fewer comfort features and even stiffer suspension. It was the kind of car which could have been taken from the shop and dive into the first race-track. The GT3 was available in white color only, with red or blue inscriptions on its sides. The adjustable rear wing and the “duck-tail” were mounted in the back, to provide better traction on higher speeds. It was fitted with the same engine as the GT3.
The 996 Carrera 4S Cabriolet is the convertible version of the slightly-uprated 996 Carrera 4. Introduced a year after the 996 C4S Coupe. The Carrera 4S Cabriolet was introduced in the lineup with the new engine and the Turbo bodywork. The cabriolet version of the Carrera 4S paired the aggressive bodywork and suspension of the Turbo with the base Carrera 4 drivetrain, though it didn't get the Turbo's huge rear wing. The three-layer canvas-top was powered and it needed 20 seconds to completely retract or cover the car, at speeds up to 50 kph (31 mph). For winter, the car featured an aluminum hard-top.
Porsche 911 Turbo X50 (996)
The optional X50 Performance Package gave the base Turbo larger K24 turbochargers and intercoolers, a revised ECU and a quad-pipe exhaust, raising the engine’s output from 415 to 450 bhp and maximum torque from 415 to 457 ft lbs. With power at 450 bhp @ 6000 rpm and torque of 457 ft lbs @ 4400 rpm, the X50 option is a monsters. Porsche engineers achieved the increase in power and performance through modifications to the Turbo charger, the change air cooler, the control units and exhaust system in particular. The base constructions of the manual and automatic transmissions were also improved.
The 996 series was a monumental update to the 911 story. The Type 996 introduced water-cooled engines and it also ushered in a new body design. The roof line with a windscreen which is around five degrees flatter gives the side view a more fluid look. Gone was the "classic" 911 design, the entire main body now much sleeker. The flat six in the Carrera 996 was a newly-developed flat-six engine that offered 300 hp. It was mated as standard with a six-speed manual. A 5-speed automatic (Tiptronic) with manual override to shift gears was on the options list. As always, the Carrera 2 was rear-wheel-drive.
In 2002, the standard Carrera models underwent a facelift. In addition, engine capacity was also increased to 3.6-litres across the range, with power up slightly on the naturally aspirated models. 2002 also marked the start of the production of the 996 based Targa model, with a sliding glass "green house" roof system as introduced on its predecessor. It also features a rear glass hatch which gave the driver access to the storage compartment. The 996 Targa is the rarest bodystyle in the series – only 5,152 were produced (all Mk.2 generation) between 2002 and 2005.
In 2002, the entire generation of the 996 was facelifted. The Carrera 4S Cabriolet was introduced in the lineup with the new engine and the Turbo bodywork. Many publications called the Carrera 4S the sweet spot in the 911 lineup when it was introduced, providing more performance than the base car without the exorbitant pricing of a Turbo or GT2. The Carrera 4S paired the aggressive bodywork and suspension of the Turbo with the base Carrera 4 drivetrain, though it didn't get the Turbo's huge rear wing. It’s easily identified by “Carrera 4S” badging and a large reflective strip on the rear end, spanning the gap between the taillights.
The second generation GT3 takes all that was good about it's predecessor and then improves it! Power from the GT1 derived flat-6 is up by 21 bhp to 381 bhp (with an 8200 rpm redline), ride height is lowered for increased stability and also has an upgraded braking setup, as it features a 6-piston calipers on the front. Two versions are offered, the more extreme 'Clubsport' showing it's track day colors with a full roll cage, racing seat and a 6-point harness. The 996.2 GT3 was the first GT3 marketed in the North America. The new Porsche 911 GT3 comes with all the features of half a century Porsche motorsport. It is a sports car for the purist through and through.
The 996 GT3 R was a one-year-only (2000 model year) special of which only 63 were produced. The car took the basic GT3 bones and amplified it for motorsport. The Mezger engine produced over 400 horsepower, while factory-fitted adjustable shock absorbers gave better handling. Most notably, the GT3 R wore carbon-fiber bodywork meant for ultimate light weight in motorsport. The 996 GT3 R was introduced in 1999 as a replacement for the 993 RSR. Before its introduction, it was extensively tested at Weissach and Paul Ricard. In the 2000 FIA GT Championship, the 996 GT3 R was in the N-GT class and won every run. Won the 24-hour race at the Nürburgring. 
In 2002, all of the standard models received a minor makeover in 2002 which included Turbo-style headlights, a freshly designed front clip and an increase in engine capacity to 3.6L along with a subsequent 20HP boost. The bodies were more rigid which further improved handling and safety and the lower, stiffer X74 suspension became available as a factory modification. From the outside, it was hard to notice the difference between the 1998 version and the facelifted model. The main difference was on the headlights. Including the Mk 1 cars, the 996 Carrera Coupe sold 46,317 units.
From model year 2001, the model range was extended to include the 911 GT2. The body of the extreme sports car was based on the body of the 911 Turbo. The GT2 engine was also based on the 911 Turbo but had ten percent more power. The bi-turbo engine delivered 462 horsepower. The GT2 was offered with a Clubsport Package for use in motorsport. In late 2003 the Porsche 911 GT2 received a power upgrade from 462hp to 483hp, maximum torque also increased from 457 lb ft to 472 ft lbs, thanks to a revised engine management program. Top speed increased by 2mph to 198mph while 0-60 is claimed to take 3.8 sec.
The flat six in the Carrera 996 was a newly-developed flat-six engine that offered 300 hp. It was mated as standard with a six-speed manual. A 5-speed automatic (Tiptronic) with manual override to shift gears was on the options list. As always, the Carrera 2 was rear-wheel-drive. Designed as a grand tourer, the Porsche Carrera Cabriolet was the base version for the open-top 911 range in 1998. The retractable roof was able to be stowed away in 20 seconds at speeds of up to 50 kph (31 mph), like the rest of the 911 convertible range. With the roof up, the car was tested in the wind tunnel at speeds of up to 338 kph (210 mph).
Towards the end of the 996 production run, Porsche introduced the Turbo S, boasting even more power than the standard 996 Turbo — 450 PS (331 kW) and 620 N·m (457 lb·ftf)— courtesy of the X50 package being standard. The Turbo S was limited to approximately 1,500 units worldwide, of which 598 were coupé (hardtop) and 960 were cabriolet (convertible). It was available with a 6-speed manual or an automatic (Tiptronic S) transmission, driving power to all four wheels. The basic price is EUR 122,500 for the Turbo S Coupé or EUR 131,100 for the Turbo S Convertible. Sprints from zero to 200 km/h in 13.6 seconds.
To commemorate the 40th year of 911 production, Porsche built 1963 of the 40th Anniversary Porsche 911 Carrera for model year 2004. Painted only in a GT Silver Metallic finish, with a dark gray leather interior, the 40th Anniversary (or 40 Jahre in German) took the Base Model 996 Carrera and added the front fascia of the 996 Turbo, side skirts and luxury features for the cabin – including a luggage set that matched the special grey leather interior. Mechanically, the X51 Powerkit increases power to 341hp, combined with rear wheels power wheels, a standard 6-speed manual and sport suspension and limited-slip differential included.
The 2005 Porsche 996 Turbo S was available as both a coupe and cabriolet – it was basically a standard Turbo model with the X50 Powerkit and carbon-ceramic brakes fitted, alongside a few luxury features for the interior. Approximately 1558 Turbo S models (split between coupe and cabrio) were sold in 2005. Also included are small aluminum appointments to the interior and Turbo S badging. A great all-rounder with the extra power to surprise most. The Turbo S with manual transmission (coupé) sprints from zero to 200 km/h in 13.6 seconds. This is another 0.8 seconds faster than the 911 Turbo. Quite rare, with only a total of 600 units made.
Porsche introduced the turbocharged version of the Type 996 for the 2001 model year (late 2000 in Europe). Like the 996 GT3, the Turbo's engine was derived from the engine used in the 911 GT1. Like its predecessor, the 993 Turbo, it featured twin-turbos but now had a power output of 420 PS (309 kW; 414 hp). As of 2002, the X50 package would increase engine output to 444 hp. The 996 Turbo was available with a 6-speed manual transmission or an automatic (Tiptronic), driving power to all four wheels. This is a great great car.