17-18 August 2012

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Lot 123

1973 Porsche 911 Carrera RS Lightweight

  • Chassis no. 9113601079
  • Engine no. 6631054
  • Transmission no. 7831078

Sold for $495,000

210 bhp, 2,687 cc air-cooled SOHC per side horizontally-opposed six-cylinder engine, Bosch mechanical fuel-injection, five-speed manual gearbox in rear transaxle, four-wheel independent suspension, and four-wheel hydraulic disc brakes. Wheelbase: 89.4"

• Number 143 out of 200

• Matching numbers engine and drivetrain

• Original M471 lightweight package

The legendary Carrera RS is widely regarded to be one of the greatest, if not the greatest, dual-purpose Porsches ever. Its primary purpose was to homologate the car for competition use, which required the construction of a minimum of 500 hundred examples within twelve months. Eventually, the cars proved to be so popular that the production run was extended to a total build of 1,580.

The RS was available in both M472, or ‘touring,’ and M471 ‘lightweight’ forms, with the touring models often being well equipped with options such as sunroof, leather upholstery, and Blaupunkt radios. In contrast, the M471 incorporated further deletions to reduce the weight even further. At about 900 kg, the resulting car weighed approximately 200 kg less than the touring model. While all Carreras are excellent driving cars, the M471 is certainly one of the fastest and most visceral. It epitomizes the ultimate Porsche experience with its immense tactility, balance, and nimbleness.

Of the 1,508 RS Carreras produced, this magnificent RS is one of the 200 factory original M471 lightweight specification cars. It is number 143 out of the 200 built. It weighs less than 2,000 pounds and features many special modifications, such as light weight body panels and glass, extremely rare custom RS Lightweight competition seats, lightweight carpeting throughout, minimal body trim, etc. This RS epitomizes the term "Power-To-Weight-Ratio." An icon in the Porsche world, it is acclaimed as “the 911 to own” for all collectors and enthusiasts and is one of the sportiest cars of all time.

Completed by the factory in April 1973, chassis number 1079 was sold by the world famous Porsche Dealer Mahag. The first owner only had it for two years, driving it only on the streets, with very limited usage. In 1975, Mr. Alfred Spah, of West Germany, purchased the car for competition purposes. He competed in national slalom events, as well as hill climb and circuit events. In 1976, Mr. Spah placed Third Overall in the hill climb championship. In 1977, he became the Champion of the Baden-Wurttemberg racing region.

The following year, 1079 was sold to USAF Lieutenant Colonel Roger Kruckerberg, stationed in West Germany. He immediately shipped the car to Oregon in the United States. Over the next decade, the Porsche was pampered and used sparingly for autocrosses, spending most of the time in storage and being carefully maintained, both cosmetically and mechanically.

Mark Heininge, of Aurora, Oregon, acquired 1079 in 1988. An avid Porsche enthusiast and collector, he also used the car very little. Showing less than 50,000 kilometers on the odometer and in very original condition, Mark continued to pamper and carefully maintain the car during his ownership over the next two years. At that time, the car went to another Porsche enthusiast and collector, Ted Halton, of Portland. He kept the car for ten years, maintaining its originality and overall great condition.

After Mr. Halton's ownership, the lightweight RS briefly passed through the ownership of world-renowned collectors Chip Connor and Chris Cox. It passed through two more owners, including a prominent Hong Kong vintage racing Porsche collector, but never left the United States, where it was maintained in a climate-controlled environment.

Having covered less than 54,000 kilometers, this RS is in great cosmetic condition overall, with a great presentation that pleasantly balances the freshness of a recently restored car with the honesty of an un-restored one. The car completed service in June 2009, by the highly regarded David Loop European, to include the replacement of shift bushings, hood supports, lubrication of throttle linkage, replacement for the engine compartment insulation, new front and rear brake pads, brake fluid flush, oil and filter change, and clutch cable boot. The distributor cap and ignition rotor were also replaced. In August of 2009, Porsche expert Ben Kirchner comprehensively inspected the car. His overall impression was extremely positive, and he marveled particularly at what a superb driving example this is, as well as at its excellent mechanical health.

The body is excellent, with straight panels and great gaps, and the paint has excellent luster, although there is a bit of orange peel. It still retains the original orange bar hood crest. The metal trim is likely original and is excellent, with only light scratching. The glass and lights are excellent on the whole, including the original non-opening lightweight Glaverbel rear quarter windows. The interior is also very nice, retaining the car’s correct lightweight equipment in excellent shape, including the door panels, seats, carpets, and rubber mats. The blank-off plate for the clock is still in place. It also retains the original RS 300 km/h speedometer, while the other instruments also remain in excellent condition. The engine compartment and trunk are both extremely clean and nicely detailed. The trunk hardware is excellent across the board, with painted surfaces in nice shape, and retains the correct RS plastic fuel tank. The engine compartment is also quite correct and clean, with correct type hardware and cadmium plating throughout, as well as the correct red fan shroud. Critical Carrera oiled chain tensioners have also been fitted.

This lightweight is an absolute pleasure to drive. Powerful and responsive, the engine is a delight. The engine revs extremely enthusiastically across the range, and the significantly reduced weight of the M471 makes the car exceedingly quick. It is one of the best performing lightweights available. Period photos from the ’70s and ’80s are also included with purchase.

Since these cars commonly have a competition history, they are often modified. This example has escaped that fate and retains its unique lightweight RS equipment in excellent condition and has obviously been under the care of dedicated and sympathetic owners. Its low mileage, honesty, and superlative driving experience are the satisfying result of the car’s careful stewardship, making this a truly exceptional example of one of Porsche’s greatest road cars of all time.


Please note that the original transmission number was listed incorrectly in the catalog, it should be no. 7831078.

Please note should this vehicle remain in the United States, 2.5% duty on the hammer price is applicable.

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

+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

+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

+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

+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

+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

+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

+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

+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

+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

+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

+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

+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

+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

+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

+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

+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

+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