Porsche 911 Turbo Flachbau

The M505/930.66 configuration was only available during the 1987 model year and exclusively to Canadian buyers, according to the Porsche 911 Turbo compendium. All told, just seven M505/930.66 Turbos are believed to have been produced; three cabriolets and four coupes. The 930.66 engine was rated to produce 296 horsepower and 319 pound-feet of torque, a significant improvement over the performance capabilities of the 930.68 engine in the other 193 M505 Turbo examples produced for the 1987 model year.
This Turbo “Flat-Nose” Cabriolet left the Zuffenhausen factory line on 1 July 1987 and was delivered new to Helmrath’s Porsche in Scarborough, Ontario, Canada on 24 August. An accompanying Porsche Certificate of Authenticity verifies the car’s numbers-matching powertrain and factory specifications, which include heated electric sport seats, a power top, limited slip differential, alarm system, and Lipstick Red special leather interior. It is believed that the original owner retained the car until 2011, at which time it appears to have been imported to the United States from Canada.
Invoices on file show regular maintenance by Porsche specialists and authorized dealers. In 2020, Fiorano Motorsports of Doral Florida and other shops undertook nearly $20,000 US in reconditioning, including paint correction and the fitment of a new convertible top and interior carpets. Work to the engine included a new distributor, accumulator, spark plugs, filters, fuel pumps, and cleaning of the injectors. In January 2021, the previous Blaupunkt radio was replaced with a new Porsche Classic head unit with GPS navigation.
Showing 34,505 kilometers (21,441 miles) on the odometer at time of cataloguing, this Turbo “Flat-Nose” Cabriolet is accompanied by a jack, spare, tool kit, service invoices, Porsche Certificate of Authenticity, warranty booklet, air compressor, and manuals.