In 2005, the 911 was heavily revised and the 996's replacement, the 997, was unveiled. The 997 keeps the basic profile of the 996, bringing the drag coefficient down to 0.28, but draws on the 993 for detailing. In addition, the new headlights revert to the original bug-eye design, drifting from the teardrop scheme of the 996. Its interior is also similarly revised, with strong links to the earlier 911 interiors while at the same time looking fresh and modern. The 997 shares less than a third of its parts with the outgoing 996, but is still technically very similar to it. Initially, two versions of the 997 were introduced— the rear wheel drive Carrera and Carrera S. While the base 997 Carrera produced 325 PS (239 kW) from its 3.6 L Flat 6, a more powerful 3.8 L 355 PS (261 kW) Flat 6 powers the Carrera S. Besides a more powerful engine, the Carrera S also comes standard with 19 inch (48 cm) "Lobster Fork" style wheels, more powerful and larger brakes (with red calipers), a more sporty suspension, complete with PASM (Porsche Active Suspension Management) which allows for electronic adjustability of suspension settings, Xenon Headlamps, and Sport Steering wheel. In late 2005, Porsche announced the all wheel drive versions to the 997 lineup. Carrera 4 models (both Carrera 4 and Carrera 4S) were announced as 2006 models. Both Carrera 4 models are wider than their rear wheel drive counterparts by 1.26 inches (32 mm) to cover wider rear tires. 0–60 mph (97 km/h) for a base Carrera 4 with the 325 PS (239 kW; 321 hp) engine was reported at 4.5 seconds according to Edmunds.com. The 0–100 km/h (62 mph) acceleration for the Carrera S with the 355 PS (261 kW; 350 hp) was noted to be as fast as 4.2 seconds in a recent Motor Trend comparison, and Road & Track has timed it at 3.8 seconds. The 997 lineup includes both 2 and 4 wheel drive variants, named Carrera 2 and Carrera 4 respectively. The Targas (4 and 4S), released in November 2006, are 4-wheel drive versions that divide the difference between the coupes and the cabriolets with their dual, sliding glass tops. There were rumours that the 997 911 was to undergo an update for the 2008 model year, however these changes were held off until the 2009 model year. The official changes, originally found in leaked product guides [17], indicate the new 997 will receive a larger air intake in the front bumper, new headlights, new rear lights, new direct fuel injection engines built from the ground up, and the introduction of a dual-clutch gearbox called PDK.[18] Porsche USA revealed that the 2009 models due out in April would be equipped with Bluetooth support in the communications system.
