Description of the model
The Porsche 911 GT3 is a high-performance homologation model of the Porsche 911 sports car. It is a line of high-performance models, which began with the 1973 911 Carrera RS. The GT3 has had a successful racing career.
The "GT3" nameplate was introduced in 1999 as part of the first generation of the Porsche 996 model range (commonly known as 996.) As with Porsche's previous 911 RS models, the 996 GT3 was focused on racing, and so was devoid of items that added unnecessary weight to the car. Sound deadening was almost completely removed, as were the rear seats, rear loud speakers, sunroof, and air conditioning, although automatic air conditioning and CD/radio became no-cost optional add-ons.
The engine of the 996 GT3 set it apart from most of the other 996 models, although it shared the same basic design of the standard so-called "integrated dry sump" flat-six engine. That engine was known as the 'Mezger' engine, after its designer Hans Mezger.
To bring the vehicle's track-prowess to the maximum level, Porsche endowed the GT3 with enlarged brakes, a lowered, re-tuned suspension system, lighter-weight wheels and a new front bumper with matched rear spoiler to help increase downforce, thereby increasing grip.
Porsche made significant updates to the GT3 for 2004 model year (the first year the car was offered to US customers), using the 2002 996 facelift including headlights that were differentiated from the entry-level Boxster. This model is commonly known as the 996.2 GT3. Engine power output rating was raised to 381 PS (280 kW) and torque to 284 lb⋅ft (385 Nm), 80% of which was available from 2,000 rpm. The braking setup was upgraded, now featuring 6-piston calipers on the front (rears remained 4-piston), The GT3 now used the body shell of the Carrera 4.
In track testing by American automotive journals, the GT3 managed a 0–60 mph (0–97 km/h) acceleration time of 4.5 seconds and a quarter mile time of 12.0 seconds at 118 mph (190 km/h). During skidpad testing, the GT3 posted 1.03g.