Chassis No. WP0JB0935KS050489
Engine No. 68K00936
Transmission No. 2K01592
The 911 Turbo Slantnose, one of the more enigmatic creations from Porsche’s Sonderwunsch (Special Wishes) Department, has gained considerable attention among Porsche enthusiasts and collectors as of late. Admired for its racing-inspired design, rarity, and hand-crafted construction, the model’s early iterations (1981–1986) often sparked confusion due to the bespoke nature and numerous variations. In 1987, Porsche addressed this with the introduction of the M505 option code, which standardized the Slantnose configuration and clarified the ordering process and costs—reaching $29,555 by 1989.
Those who opted for the M505 Slantnose package, a treatment which cost as much as an entire Porsche 944, added unique race-inspired aesthetics, custom interior treatments, and a dose of exclusivity to the 911 Turbo. For the U.S. market, only 143 Slantnose-equipped Turbos were produced for the final G-Body model year (1989), with just 60 of these in Coupe form. Notably, these 1989 models were the first and only G-Body Turbo versions to feature Getrag’s G50 five-speed manual transmission, enhancing both driving performance and collectability.
Completed at Porsche in March 1988 destined for the United States market, this factory M505-code 911 Turbo, with its Coupe bodywork and coveted Slantnose configuration, represents one of the most expensive new Porsche models available in 1989. This example not only sports the $29,555 Slantnose package, but additionally features a sport leather steering wheel with Porsche Exclusive inlaid crest and raised hub, 40-percent locking limited slip differential, short shifter, an additional amplifier, and electrically adjustable supple leather seats featuring a driver’s side lumbar support. Finished in Guards Red over a Cashmere and Black partial leather interior, it rides on classic Fuchs alloy wheels with centers finished in matching Guards Red, an iconic feature for the Slantnose.
The Turbo’s accompanying maintenance book shows that it was originally sold in Florida. The clean CARFAX Vehicle History Report records that the car transferred ownership in 1994 with 8,843 miles to a Pennsylvania owner and then, after 11 years in the Keystone State, the car briefly passed through two additional owners before landing in California in 2008 with 26,203 recorded miles. Clearly a special 911 Turbo by this point, having been used sparingly, the M505 930 S gradually became a highly collectible automotive icon, representing the apex of 1980s automotive culture. Over the next 17 years the car would only accumulate an additional 5,000 miles, with regular servicing in the Southern California area and later at Porsche Dallas. It is noted that a prior owner applied paint protection film (PPF) to the entire vehicle in an effort to protect the Guards Red finish. Most recently, a major engine out service was performed by DriverSource of Houston, Texas, completed in early 2025. Previously, the transmission and differential were rebuilt by Bill Rader Motorsports (BRM) of Las Vegas. Together, this extensive maintenance program ensures that the Slantnose remains ready for the open road. Indeed, this G50-equipped 911 Turbo Slantnose would be the ultimate weapon of choice for Porsche-focused driving events such as the Ramshorn Rally.
Today this factory M505 930 Slantnose Coupe shows just under 32,000 miles and remains in excellent condition, and comes complete with a toolkit, air pump, trunk-mounted spare, jack, and owner’s manual with service book. With their handmade motorsport-inspired bodywork, performance parts, and exceptional rarity, factory-built M505-optioned Slantnose Coupes in classic colors remain tremendously desirable in the collector car world. One fitted with the coveted G50 five-speed transmission must surely be the ultimate expression of this most collectable of G-Body 911s.
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