1994 Porsche 964 Turbo 3.6 S Flachbau

As production of the Type 964 neared its conclusion, Porsche introduced one of the most distinctive and exclusive variants of the air-cooled era. Built during 1993 and 1994 by Porsche’s Exclusive Department from the final allocation of 964 Turbo chassis, the 911 Turbo 3.6 S Flachbau, or Flatnose, represented a culmination of Porsche’s bespoke manufacturing capabilities and the ultimate expression of the rear-wheel-drive 964 Turbo.

Reviving a design theme first popularized by the Sonderwunsch-program 930 Turbos of the 1980s, the Flachbau drew inspiration from the aerodynamic profile of Porsche’s dominant 935 race cars. The traditional 911 silhouette was transformed by a dramatically reworked front end featuring exposed pop-up headlights, vented front fenders, and a lower, more purposeful appearance.

Based on the 911 Turbo 3.6, the Flachbau was built in three separate series for Japan (X83), Rest of World markets (X84), and the US (X85). While minor differences existed between them, all Turbo 3.6 S Flachbau models were equipped with Porsche Exclusive’s X92 front spoiler, X93 rear spoiler, and X99 rear fender air intakes, creating one of the most aggressive and recognizable interpretations of the Type 964. Hand-finished by Porsche Exclusive, each required extensive modifications beyond those of a standard Turbo, reflecting the model’s low-volume, coachbuilt character.

Equally significant was the X88 Sport Tuning package, standard on all Turbo 3.6 S models. Drawing inspiration from the Andial-developed IMSA engine program campaigned by Brumos Racing, the M64/50S engine produced 385 hp, an increase of 25 hp over the standard Turbo 3.6. The additional output was achieved through a larger turbocharger, revised cylinder heads, higher-lift camshafts, and a modified intake system. Supporting upgrades included a front-mounted oil cooler and distinctive four-outlet exhaust system.

Beyond its increased power output, the Turbo 3.6 S benefited from a comprehensive performance package derived from Porsche’s competition experience. Power was delivered through a five-speed G50 transaxle and limited-slip differential to the rear wheels, while upgraded brakes, suspension revisions, and wider wheels and tires enhanced the car’s already formidable capabilities.

Capable of accelerating from 0–60 mph in approximately four seconds and reaching nearly 180 mph, the Turbo S Flachbau ranked among the fastest production automobiles of its era. In April 1994, Excellence magazine described the Turbo S Flachbau as “the fastest-accelerating production Porsche ever built.” Beyond its startling performance, the publication viewed the model as the ultimate evolution of the rear-wheel-drive 911 Turbo, combining bespoke Porsche Exclusive coachwork with exceptional rarity and capability.

This particular 964 Turbo 3.6 S Flachbau is one of 93 produced, and just 39 X85 examples built for the US market. Finished in Guards Red over a black leather interior, this Flachbau came equipped with desirable features and equipment including electrically adjustable sport seats, a power sunroof, CD changer, and 18” Speedline wheels. While its earliest ownership remains only partially documented, accompanying records indicate the car spent its early years in Ohio before entering the collection of Porsche collector Doug Didrick of Naples, Florida. Service records from Porsche of Naples document maintenance performed during his stewardship, including a major 15,000- mile service and related mechanical work in 2006.

By 2017, the Turbo S had entered the collection of George L. Bunting Jr., whose renowned assemblage of European sports and grand touring automobiles later formed the foundation of the BHA Automobile Museum in Maryland. Preserved alongside numerous significant Aston Martins, Ferraris, Mercedes-Benzes, and Porsches, the Flachbau benefited from stewardship within one of America’s most respected private collections.

This Flachbau has continued to benefit from zcareful maintenance, including recent servicing by Porsche Hunt Valley in Maryland, and Porsche Main Line in Pennsylvania. The CARFAX Vehicle History Report on file indicates no reported accidents or damage, and the car showed just 18,689 miles at the time of cataloguing.

Combining extraordinary rarity, documented collector ownership, and the formidable performance of the Turbo 3.6 S, this exceptionally low-mileage and well-kept Flachbau stands among the most desirable and significant air-cooled 911 variants ever produced. One of only 39 examples built for the US market, it is accompanied by its books, tools, spare, jack, and documentation and represents the ultimate evolution of the rearwheel- drive 964 Turbo.