London

6 September 2017

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Lot 105

1975 Porsche 911 Turbo

  • Chassis no. 9305700233
  • Engine no. 6750254

£175,000 - £200,000

Country: Canada

Documents: British Columbia Vehicle Registration


  • First year of the vaunted 911 Turbo
  • One of only 274 examples built for 1975
  • Original numbers-matching drivetrain
  • Restored in 2015; finished in its original colour combination
  • Well-documented with comprehensive history file
  • Includes tool roll, original brochures and Certificate of Authenticity


Internally dubbed the Type 930, the Turbo, as it was simply known, featured a three-litre air-cooled six-cylinder engine boosted by a KKK turbocharger. With maximum pressure of .8 Bar, or about 11.5 psi, the engine developed an impressive 260 hp at 5,500 rpm and 253 foot-pounds of torque at 4,000 rpm. With that much twist available, Porsche determined that the stronger four-speed transaxle with widely spaced ratios would suit in place of the five-speed gearbox used across the rest of the 911 range.

Nobody would ever mistake the muscular new bodywork of the Turbo for any ordinary 911; its front fenders and rear quarter-panels were drastically flared to accommodate new 15-inch-diameter Fuchs forged aluminium road wheels, seven inches wide in front and eight inches in the rear. The rear ‘whale-tail’ spoiler not only added down-force, but its separate intake grille also supplied cooling air to the engine compartment. A deep chin spoiler was added below the nose to balance the handling.

Porsche had taken the challenge of building an incredible performance car in an era when the powers that be fought against it, and the result was not only the fastest production car that they had ever offered, but also the fastest production car on the planet.

This first-year 911 Turbo was originally finished in Silver Metallic over a black leather interior, the same combination that it sports today. While its first owner is unknown, interestingly, this European-specification example found its way to the U.S., when it was acquired by Rohan Kelley of Fort Lauderdale, Florida, in 1986. Kelley, believed to be the second owner, continued to maintain the Turbo over the next 15 years. Numerous service receipts and invoices on file document his fastidious care. In 2001, the Porsche was acquired by Jeremy Van Bemmelen who in turn sold the Turbo to Dan Schroeder, in August 2009.

Schroeder embarked on a thorough mechanical restoration of the car in 2015. Work included a complete engine rebuild by Personalized Autohaus of San Diego, California, as well as refinishing the interior with new black leather and carpeting by Autos International in Escondido. Shortly thereafter, the Turbo was acquired by the current consignor, a Porsche specialist based in Vancouver, Canada. Additional mechanical sorting as well as correcting several 1975-specific details was performed to ensure that this iconic Turbo performs to the standards that Porsche intended. Additionally, a correct air box as well as a set of 15-inch wheels were sourced to complete the authentic look.

The nimble and powerful 911 Turbo in its earliest form is much sought after by enthusiasts, who consider it to be the purest and most enjoyable of this long-lived series. This first-year 911 Turbo represents both the dawn of an era in Porsche history and one of the automaker’s all-time most significant achievements.

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