1991 Porsche 964 Carrera 4 Leichtbau VIN: 964-015 Porsches ultimate 964 One of only 22 ever produced The only C4 Lightweight painted in black 750+ pounds lighter than a stock Carrera 4 Rally-spec all-wheel drive system built around the Porsche 953 rally car 5-speed transmission with short-ratio gearing 2769 original miles (4,456 kilometers) Mechanical differential bias controlled from the cockpit 3.6-liter twin-plug flat six air-cooled engine Introduced to the public in 1989, the Porsche 964 would bring technology to the 911 that was first used in the Porsche 953 rally car. All-wheel drive was now available on the 964, dubbed the Carrera 4, but added a significant weight penalty to the already-enlarged 911. With the world economy still recovering from a major recession in 1987, customer sports department manager Jrgen Barth devised a plan to revitalize customers interest by introducing a special program to produce an exclusive 964. Channeling motorsport ingenuity and engineering, Barth and his team created the most focused Porsche 964 that the world would ever see: The Porsche 964 Carrera 4 Leichtbau (Lightweight). Beginning with a 964 shipped to the Weissach works factory, each of the Carrera 4 Leichtbaus were constructed in the racing factory. Upon arrival, each and every piece of the car was analyzed. If it was deemed too heavy or unnecessary, it was replaced or removed. The doors and hood were made of aluminum, the side windows Lexan, and the deck lid of lightweight plastic. The interior was stripped down to just bare paint, with a roll cage installed in its place. Racing seats were installed, a lightweight exhaust was created, the heater fan was removed and all traces of comfort and luxury were eliminated in the pursuit of lightness. When said and done, almost 770 pounds were removed from the cars. The 964 Carrera 4 Leichtbaus were true Weissach products. Built by hand and prepared like race cars, normally the adage goes street car for the race track, the 964 Carrera 4 Leichtbau is a true race car for the street. Mechanically, the running gear became the star centerpiece which was built around the original Porsche 953 rally car. An ultra-light flywheel was paired with the short-ratio 5-speed manual transmission and using 953 all-wheel drive systems, used in the 1984 Paris Dakar rally cars, were installed into the 964s. Each drivetrain was numbered a unique set of numbers specific to each car. While the Porsche was naturally aspirated, aluminum 935 boost knobs were used to control the differential bias which could be adjusted by the driver from front to rear and side to side of the car. The stainless-steel exhaust system was fabricated and with no sound proofing or deadening materials to speak of, created one of the loudest street 911s to ever leave Germany. With the first Leichtbau finished, the issue was now importing the 964s into the U.S. With the DOT and EPA scrutinizing all grey-market import cars, especially with Porsche after the recent influx of importing Carrera 2.7 RSs and the recent 959 program, Barth needed a way to import his new brainchild. Californian Kerry Morse committed to the first 964 Carrera 4 Leichtbau, 964-001, before they were even being built. Morse said that he would purchase several more if they ended up being built, and gave Barths 964 Carrera 4 Lecihtbau program its running start. Morse also pushed for the VIN to reflect the Porsche factorys way of numbering factory werks cars to be able to import them to the U.S., and the 964s then began to receive their 964 Leichtbau-specific VINs, beginning with 964 001. These street cars had their VIN stamped the way Porsche assigned their own racecars and telling the DOT and EPA that these cars were made specifically for off-road driving. Having to stretch the truth to almost the breaking point on many parts of these special 964s in order to get the cars into the U.S. was a tricky process, but ultimately worked.
This 1990 Porsche 964 Carrera 4 was listed for sale on 8-3-18 06:41:04. The vehicle color is Black and VIN is
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