Nineteen eighty-nine was the final year for Porsche’s highly celebrated Type 930, capping the run of one of automotive history’s most prized speed machines. For models specified for the United States, the desirable flat-nose coachwork was coded M505, and approximately 147 cars were so delivered, of which just 28 examples were completed as cabriolets.

This stunning and minimally driven flat-nose 911 Turbo benefits from a well-maintained life in the hands of just two dedicated owners, resulting in a fabulous example of the venerable Turbo. As clarified by a copy of the original window sticker, chassis 70508 was finished in black over a black interior, with a black convertible top, and optioned with a dark Rootwood dashboard. The M505 flat-nose body configuration is also confirmed by an option sticker under the hood. Also equipped with a Blaupunkt radio with cassette player, the 911 was sold new by Delon Porsche in Salem, Oregon, and the first owner maintained possession until 2007. The car then passed to its second owner, an enthusiast who kept the car for another 12 years.

Currently displaying 7,605 miles, the cabriolet has experienced little use and was recently fully serviced as needed. It is accompanied by original accessories including an air compressor, jack, toolkit, and convertible boots, as well as the original manual and service/warranty booklet, the latter of which reflects a life of regular maintenance over the last 30 years.

A time-capsule example of the holy grail of 911 Turbos, this rare flat-nose cabriolet represents the ultimate evolution of the highly desirable Type 930, and it is additionally notable for being the only iteration in which the model was equipped with a five-speed gearbox. Ideal for presentation at Porsche club events or to be enjoyed on the open road, this superb Turbo cabriolet would make a beautiful addition to any collection, particularly suited to marque collectors on the hunt for a low-mileage example of the venerable M505 flat-nose 911.