Porsche 911 Turbo Flachbau
Highlights
- One of only 148 Turbo Coupes built with the M505 “flat-nose” package for 1988
- $300,000 - $350,000 USD Offered Without Reserve
- The Monterey Auction 2026
1988 Porsche 911 Turbo ‘Flat-Nose’ Coupe
In 1982, Porsche racing sponsors requested that the German automaker’s Exclusiv Manufaktur—sometimes called “Sonderwunsch,” or “Special Wishes”—program create a unique road car that looked like the world-beating Type 935 racer. Using the already-aggressive 911 Turbo as a starting point, the resulting bodywork featured louvered steel front fenders made flush with the hood and fitted with retractable headlamps. The rocker panels were boxed and extended to meet the widened rear quarter panels, which contained new brake-cooling vents with side strakes and an electric fan for additional oil cooling. Wider wheels and tires were fitted at both ends.
It took until 1987 for Porsche to add the so-called Flachbau package to its North America catalogue, giving it the option code M505 (M506 for “rest of world” cars). This came at an extraordinary cost approaching $30,000; consequently, only 148 Turbo Coupes were built for 1988 for the North American market, with a very limited number of additional cars sold worldwide. Simply put, these were exclusive and sought-after cars when new and remain coveted by Porsche collectors today, and well-preserved, low-mileage examples—like this 1988 M505 Coupe—are particularly desirable.
1987 
1988 
