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2008 Porsche 911 Convertible - Overview

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$83,800 – $136,500 MSRP

15 / 24 MPG City/Hwy

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2008 Porsche 911 Convertible

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Overview

What Changed for 2008:

  • New 911 Turbo Cabriolet model

  • New 911 GT2 model
Overview
The Porsche 911 traces its lineage back to 1964. Over the years, the Porsche 911 has participated in, and won, many of the world's most prestigious races, rallies and hill climbs. The 2008 Porsche 911, the Type 997, is the second generation of the water-cooled models (all 911s were air-cooled until 1999): a rear-engine sports car with an emphasis on driver involvement. For 2008, a Turbo Cabriolet joins the model range. What Porsche claims will be the ultimate street-legal 911 derivative, the GT2, is expected later in the 2008 model year.

Model Lineup
The 2008 Porsche 911 lineup is comprised of 14 different models. The basic chassis remains the same, with engine, driveline, body style and equipment modified to build the various models. The standard Carrera models offer 325 hp, while the Carrera S models offer 355 hp with several performance upgrades. The Carrera 4 adds all-wheel drive (AWD), and the Cabriolet badge is reserved for convertible models. All Targa models are built with a power-operated sliding open roof with a fixed B-pillar. Mix and match these features and the enthusiast can build a multitude of different models. Standard equipment includes power windows, power moonroof and partial leather seats. The Porsche options and accessories list includes such items as a carbon fiber steering wheel and leather-upholstered dome lamp.

The 911 Turbo is the range-topping, 480-hp, AWD, twin-turbo, touring GT offering from Porsche. Loaded with standard equipment, it is joined by a Cabriolet version for 2008. The 911 GT3 and higher-performance 911 GT3 RS are 415-hp, street-legal, track-ready racecars, according to Porsche, both only offered with light options, rear-wheel drive and manual transmissions.

Powertrain
The standard Porsche 911 for 2008 is equipped with a 3.6-liter 6-cylinder engine rated at 325 hp and 273 lb.-ft. of torque. All "S" models benefit from a larger displacement 3.8-liter 6-cylinder rated at 355 hp and 295 lb.-ft. of torque. The 911 Turbo features a racing-bred, dry-sump, twin-turbo 3.6-liter engine rated at 480 hp and 505 lb.-ft. of torque with the optional Sport Chrono Turbo package. (This is a different engine from the "wet" sump 3.6-liter found in the standard Carrera). All Carrera models, including the Turbos, offer the choice of a 6-speed manual transmission, or Porsche's 5-speed Tiptronic S automatic transmission with manual shifting option. Both GT3 models share a special dry-sump 3.6-liter engine based on the engine found in the previous GT3 model (Type 996). It is rated at 415 hp and 300 lb.-ft. of torque. The GT3 is only available with a 6-speed manual transmission. EPA fuel economy estimates are in the 15 mpg city/26 mpg highway range, depending on model. Porsche offers a 4-year/50,000-mile warranty on all its new vehicles.

Safety
All 2008 Porsche 911 models are equipped with driver and passenger front air bags and the Porsche Side Impact Protection (POSIP) system. The POSIP system features two side air bags for each front seat. The first air bag is located inside the panel of the door, while the second deploys from the side of the seat to protect the passenger's thorax. Anti-lock brakes and Porsche Stability Management (PSM) are standard. The Porsche 911 has not been crash tested by the National Highway Traffic Safety Administration (NHTSA) or the Insurance Institute for Highway Safety (IIHS).

Technology
Porsche's 911 models have been offered with turbocharged engines since 1974. The 2008 911 Turbo and Turbo Cabriolet utilize Variable Turbine Geometry (VTG) to solve a problem that has plagued turbocharged cars for years: turbo lag, the delay caused by the time a large turbocharger takes to spin up to speed. Small turbos may solve the problem initially, but their deficiency is "shortness of breath" as the tachometer climbs. VTG solves both issues, Porsche says, with adjustable turbo vanes, or the "wings" that catch the air and spin the turbo to speed. By electronically changing the angle of the vanes, the twin turbochargers in the 911 Turbo effectively replicate a small turbo at low speed, and a large turbo at high engine speeds, the automaker explains.

Available Trims for the 2008 Porsche 911 Convertible

  Transmission MSRP Engine City/Hwy MPG
Carrera (M6) 6 speed manual $83,800 325-hp / 3.6L 6-cyl 18/26
Carrera S (M6) 6 speed manual $94,100 355-hp / 3.8L 6-cyl 17/25
Carrera 4S (M6) 6 speed manual $100,000 355-hp / 3.8L 6-cyl 17/25
Turbo (M6) 6 speed manual $136,500 480-hp / 3.6L 6-cyl 15/24

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