Porsche 911 GT1 - ixo (Tarmac Works) ⯈T64P-004-WH

The Porsche 911 GT1 was engineered by Porsche AG in the mid-1990s to compete in the GT1 class of international sportscar racing, a category that required manufacturers to produce a street-legal version for homologation. This led to the creation of the ultra-rare 911 GT1 Straßenversion, a road-going variant that mirrored the race car’s aggressive design and performance. Unlike its predecessors, which were modified production models like the McLaren F1 and Ferrari F40, the GT1 was purpose-built for racing, marking Porsche’s return to top-tier competition through the BPR Global GT Series, which later evolved into the FIA GT Championship. Porsche initially attempted to adapt the 993 GT2 into a GT1 contender, but its performance fell short, prompting the development of an entirely new machine.

Despite carrying the 911 name, the GT1 shared little with the production 911 beyond its headlight and taillight assemblies. Its front chassis was loosely based on the 993, while the rear borrowed heavily from the 962C Group C prototype, including a longitudinally mounted, water-cooled 3.2-liter twin-turbo flat-six engine producing around 600 PS (592 hp). This setup gave the GT1 a rear mid-engine layout, a stark departure from the traditional rear-engine configuration of the 911. The car made a dominant debut at the Brands Hatch 4 Hours, followed by victories at Spa and Zhuhai, showcasing its competitive edge. During practice for the 1996 Le Mans 24 Hours, the GT1 reached a blistering 330 km/h (205 mph) on the Mulsanne Straight, cementing its legacy as one of Porsche’s most formidable race-bred machines.

The 911 GT1 Straßenversion is a fascinating anomaly—born from racing regulations, yet engineered with such precision that it became a unicorn among road cars. Here’s a quick synthesis of the key highlights from your write-up, just to make it pop:

Porsche 911 GT1 Straßenversion: Race-Bred Royalty

Origins & Purpose

• Developed by Porsche AG for the GT1 class of sportscar racing.
• Required a street-legal version for homologation—hence the Straßenversion.
• Entered the scene during the mid-1990s revival of international sportscar racing via the BPR Global GT Series, later the FIA GT Championship.

Design & Engineering

• Barely related to the 911 (993) despite the name—only shared front and rear lights.
• Front chassis: Based on the 993-generation 911.
• Rear subframe: Derived from the 962C Group C prototype.
• Engine: Longitudinally-mounted, water-cooled, twin-turbo 3.2L flat-six.

• Output: ~600 PS (592 hp)
• Fuel system: Bosch Motronic 5.2
• Layout: Rear mid-engine, rear-wheel drive (vs. traditional rear-engine 911)

Racing Pedigree

• Debuted at Brands Hatch 4 Hours—won by Hans-Joachim Stuck & Thierry Boutsen.
• Follow-up wins at Spa and Zhuhai.
• Hit 330 km/h (205 mph) on the Mulsanne Straight during 1996 Le Mans practice.