Back to 911
Porsche

Porsche 911 GT3 2003

2003

The 2003 Porsche 911 GT3 belongs to the second evolution of the 996 generation, commonly identified as the 996.2. Developed as a road-legal sports car with a strong track focus, it uses a naturally aspirated 3.6-liter flat-six producing 381 PS and paired with a six-speed manual gearbox. Porsche quoted a 306 km/h top speed and a 0–100 km/h time of 4.5 seconds. The updated model is recognizable by its redesigned headlights, revised front and rear sections, dedicated wheels, and reshaped fixed rear wing. Rear-wheel drive remained part of the formula, while the chassis, braking system, and lightweight approach were all directed toward precise, demanding performance rather than everyday comfort.

Have you spotted this car?Scan it: your photo enriches this page and helps the community.
Scan this car
911 GT3
Photo by @myrtille

History

The 911 GT3 was introduced by Porsche in 1999 at the beginning of the 996 generation. It continued the Carrera RS tradition by creating a more direct link between road-car production and motorsport. Its 3.6-liter naturally aspirated engine used a racing-derived architecture, while the six-speed manual transmission came from the 911 GT2. The first version produced 360 PS and featured a lowered chassis, upgraded brakes, a limited-slip differential, and a fixed rear wing. Porsche also offered a Clubsport package with a roll cage for customers seeking a more competition-oriented specification.

In 2003, the 996 GT3 received a substantial update. The engine gained Porsche’s VarioCam system and its output rose to 381 PS. The exterior was revised with new headlights, updated aerodynamic components, and a redesigned rear wing. The braking package was also improved, while Porsche Ceramic Composite Brakes became available as an option. This model represented the final major GT3 development based on the 996 before the 997-generation car arrived in 2006.

Latest scans

Photos added by the community for this page.

3 photos
Add yours

Technical data

8 powertrains recorded for the 911 GT3. Some figures apply to the version as a whole rather than to each engine.

Compare powertrains

Pick a powertrain: the detailed sheet below follows your selection.

Comparison of official powertrains. Selecting a column updates the detailed sheet.
Criterion
Power235 kW235 kW235 kW235 kW235 kW235 kW235 kW235 kW
Torque370 Nm370 Nm370 Nm370 Nm370 Nm370 Nm370 Nm370 Nm
GearboxManuelleAutomatique, 5 rapportsManuelle, 6 rapportsAutomatique, 5 rapportsManuelle, 6 rapportsAutomatique, 5 rapportsManuelle, 6 rapportsAutomatique, 5 rapports
DrivetrainPropulsion
FuelEssenceEssenceEssenceEssenceEssenceEssenceEssenceEssence

Showing: 3.6

This powertrain

Power
235 kW
Torque
370 Nm
Transmission
Manuelle
Drive type
Propulsion
Fuel
Essence

Recorded across the whole version

0-100 km/h
4.1 - 5.9 s
Top speed
275 - 315 km/h
Displacement
3596 - 3600 cm3
Consumption
11.1 - 13.9 L/100 km
Dimensions
4430 x 1765 x 1306 mm
Weight
1345 - 1620 kg

Source: cardatawiki

Anecdotes

Before the GT3 reached customers, Walter Röhrl drove the first 996 GT3 around the Nürburgring Nordschleife in under eight minutes. Porsche used the achievement to demonstrate the capabilities of its new road-legal sports car. The 996 GT3 also provided the foundation for the 911 GT3 Cup, GT3 R, and GT3 RSR competition cars, reinforcing the close relationship between the road model and Porsche’s racing programs.

Production

The 2003 911 GT3 was a road-legal production model, but Porsche developed it with serious circuit use in mind. The company states that the first GT3 cars began production at Weissach in May 1999 and that the model served as the homologation basis for several competition versions. However, the sources consulted do not establish one official production figure clearly limited to the standard 2003 GT3. Figures sometimes quoted for the 996 family may combine multiple model years, markets, or derivatives, including Clubsport versions. It is therefore more accurate not to assign a precise production total to this specific configuration without a detailed factory archive.

Press reception

Road tests of the 996 GT3 have generally emphasized the consistency of its formula: a high-revving naturally aspirated engine, manual transmission, rear-wheel drive, and a chassis tuned for precision. Car and Driver described the North American version as the most extreme non-turbo 911 in the range, highlighting its racing-derived engine and track-oriented suspension. More recent comparisons by evo also recognize the 996’s agile, communicative character, while noting that the later 997 brings greater grip, stability, and outright performance. The 996 GT3 is therefore remembered less for electronic assistance or effortless speed than for its direct mechanical connection and relatively focused simplicity.

Evolution

Compared with the GT3 introduced in 1999, the 2003 model advanced the engine, chassis, and exterior design. Power increased from 360 to 381 PS through revisions to the naturally aspirated flat-six and the adoption of Porsche’s VarioCam system. Porsche also quoted an increase in top speed from 302 to 306 km/h, while the 0–100 km/h time improved from 4.8 to 4.5 seconds. Exterior changes included new headlights, revised front and rear sections, new wheels, and a redesigned fixed rear wing. The braking system was upgraded, and Porsche Ceramic Composite Brakes became available as an option for the first time on a 911 GT3.

Variants

The 996 GT3 family included several levels of preparation. The standard road car was the core model, combining a six-speed manual gearbox, a performance-focused chassis, and a fixed rear wing. Porsche also offered a Clubsport version with equipment intended for circuit use, including an integrated roll cage. Exact equipment could vary according to market and customer specification.

The GT3 RS belongs to a separate stage of the 996 family. Porsche introduced it for the 2004 model year with an even stronger connection to a road-legal racing car. It should therefore not be confused with the 2003 base GT3. The vehicle covered here is the standard road-going GT3 from the 996.2 evolution, rather than the Clubsport or GT3 RS derivative.

References