Arizona

19-20 January 2017

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Lot 212

1989 Porsche 911 Turbo 'Flat Nose' Cabriolet

  • Chassis no. WP0EB0936KS070302
  • Engine no. 68K00558

Sold for $239,250


Type 930. 282 bhp, 3,299 cc SOHC horizontally opposed air-cooled six-cylinder engine with a single turbocharger and Bosch electronic fuel injection, G50 five-speed manual transmission, front and rear independent suspension, and four-wheel ventilated and cross-drilled power disc brakes. Wheelbase: 89.4 in.

  • Rare “Flat Nose” Cabriolet, option M505
  • Highly desirable “triple black” combination
  • The most sought-after model with a G50 gearbox
  • Final year of the K-series 911 Turbos


Porsche began to experiment with turbocharging its 911 six-cylinder engine in 1972, but in order to race its new Type 934 in Group 4, it was required to build at least 400 examples within a two-year period that could be sold through dealers and legally registered for street use. Thus the Type 930 was born, the first of which appeared in 1976. The new 930 Turbo soon established itself as the world’s fastest production car, and with its huge flared fenders and whale-tail rear deck spoiler, it became the dream car of countless enthusiasts.

For the discriminating enthusiast for whom a mere Porsche Turbo was not adequate in the late 1980s, option M505 beckoned on the dealer order sheet. This option brought the customer a Turbo coupe, Targa, or cabriolet with a steel “flat nose” (or slant-nose) conversion, providing a sleek new “935-like” look with lowered and louvered front fenders, flush headlamps, boxed rocker panels, and straked side cooling vents on the radically widened rear quarter panels. Altogether, it was an extreme and very muscular look. Porsche would build 600 Turbo cabriolets for the North American market for model year 1989, the K-series being the final iteration of that chassis and body before the arrival of the new 964-based Carrera 2 and 4. A small number of these were equipped with the M505 package due to its considerable extra cost.

The Turbo package itself included dramatically widened fenders, enclosing 16-inch-diameter Fuchs alloy wheels, 8 inches wide in front and 9 inches wide in the rear, shod with 225/50 and 245/45 tires, respectively. Luxuriously appointed with standard air conditioning, tinted glass, electric windows, and an entertainment system, its 282-horsepower engine could launch the Turbo to 60 miles an hour in less than five seconds and achieve more than 160 miles an hour. Turbos had impressive stopping power as well, with large power-assisted ventilated and cross-drilled disc brakes all around.

We are pleased to offer one of the most attractive 1989 “Flachbau” Turbo Cabriolets available. This beautiful example, benefiting from long-term ownership, was factory-equipped with a smooth-shifting G50 five-speed transaxle, 40-percent limited-slip differential, and a sports steering wheel atop a raised hub. Options documented on the original invoice, included with the sale, include a shorter shift lever, tonneau cover, power sport seats for both the driver and passenger, a pair of rear shelf speakers, and of course, option M505, the Flat Nose package.

The car was originally delivered to Ken MacDowell of Ohio on 21 January 1989 through the Crestmont Porsche dealership of North Olmsted, Ohio. Mr. MacDowell retained the car until his passing in 2010, and the car was acquired by the consignor. Included with the car are invoices from new throughout Mr. MacDowell’s ownership, documenting every service performed by an authorized Porsche dealer. Additionally, the original order form, deposit, and delivery invoices are included with the car, along with the original window sticker.

According to CARFAX, “This vehicle was listed as vehicle 2 out of 2 and the vehicle is listed by year, make, model” as being involved in an accident. No further information about the accident was reported, and CARFAX is unable to provide any further details other than the provided. A Pre-Purchase Inspection (PPI) has recently been performed by an authorized Porsche dealer and is on file for review. The numerous invoices on file do not make any mention of accident repair, and a RM Sotheby’s specialist inspection could not find anything out of place.

With just over 9,300 miles on the odometer, extensive documentation and long-term ownership, and finished in Code 700 black with black leather trim, black carpets, and a black convertible top, this Turbo Cabriolet is an elegant yet menacing road machine.

Please contact our exclusive automotive transportation partner, Reliable Carriers, for a shipping quote or any other information on the transport of this vehicle.

Alexander Weaver

aweaver@rmsothebys.com

+1 864 313 6844
California, United States

Alexander Weaver joined RM Sotheby’s in 2011 as a Car Specialist after graduating from Furman University in South Carolina. Born... read more

Augustin Sabatié-Garat

asabatie-garat@rmsothebys.com

+44 (0) 74 1511 4179
United Kingdom

Augustin Sabatié-Garat joined RM Europe in 2012 as a Car Specialist after more than a decade in the collector car hobby. Gradua... read more

Barney Ruprecht

bruprecht@rmsothebys.com

+1 203 912 7168
Ontario, Canada

Barney’s interest in classic cars began at an early age after being introduced to his father’s all-original 1965 Porsche 911. Barney l... read more

David Swig

dswig@rmsothebys.com

+1 415 302 2247
California, United States

David Swig joined RM Sotheby’s West Coast division as a Car Specialist in May 2015. David is a life-long automobile enthusi... read more

Don Rose

drose@rmsothebys.com

+1 617 513 0388
United States

Don joined RM in 2006 after several years of professionally trading sports and classic cars, and after earning a reputation as a noted... read more

Donnie Gould

dgould@rmsothebys.com

+1 954 566 2209
Florida, United States

Donnie Gould joined the RM team in 2002 as a partner and Car Specialist after more than two decades in the vintage automobile auction ... read more

Gord Duff

gduff@rmsothebys.com

+1 519 352 4575
Ontario, Canada

Gord Duff began his journey with RM Sotheby’s in 1998. Since then, he has gained an intimate knowledge of a variety of marques a... read more

Jake Auerbach

jauerbach@rmsothebys.com

+1 310 559 4575
California, United States

Jake Auerbach got his start in the automotive industry at an early age, spending his summers during high school working at a classic c... read more

Kurt Forry

kforry@rmsothebys.com

+1 717 623 1638
California, United States

Having worked for Bonhams’ Automobilia department for over 10 years, Kurt Forry joined RM Sotheby’s with more than a decad... read more

Matt Malamut

mmalamut@rmsothebys.com

+1 805 231 6410
California, United States

A long-time car enthusiast and Southern California native, Matt studied Automotive Technology at San Diego Miramar College and complet... read more

Michael Squire

msquire@rmsothebys.com

+44 (0) 20 7851 7070
United Kingdom

Michael Squire joined RM Sotheby’s European Division in the summer of 2016. He comes to RM with a prestigious racing background ... read more

Mike Fairbairn

mfairbairn@rmsothebys.com

+1 519 352 4575
Ontario, Canada

As one of the three founding partners of RM Sotheby’s, Mike has a long-standing interest in the classic car industry. Graduating... read more

Oliver Camelin

ocamelin@rmsothebys.com

+44 (0) 75 0110 7447
United Kingdom

With an extensive background in exotic sports car history and sales, a particular passion for American curves, and fluency in three la... read more

Paul Darvill

pdarvill@rmsothebys.com

+44 (0) 20 7851 7070
United Kingdom

Paul Darvill joined the RM Sotheby’s European team at the beginning of 2015. Paul holds a degree in French and Politics from the... read more

Pete Fisher

pfisher@rmsothebys.com

+1 519 784 9300
Ontario, Canada

Pete Fisher was first introduced to antique cars in high school, working for Classic Coachworks in his hometown of Blenheim, Ontario. ... read more

Shelby Myers

smyers@rmsothebys.com

+1 310 559 4575
California, United States

Shelby Myers grew up with the classic car industry infused into every aspect of his life. He had the unique opportunity to watch the R... read more

Tonnie Van der Velden

tvandervelden@rmsothebys.com

+31 653 84 19 60
United Kingdom

Tonnie Van der Velden joined RM Sotheby’s European division in September 2015 as a Car Specialist. A lifelong enthusiast, Tonnie... read more