Lot 106 | The Porsche Auction in partnership with Air|Water | Auction Estimate: $275,000 usd – $375,000 usd/ $378,000 cad- $516,000 cad

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Ahh the 1980s. What a time to have lived through….when the panache of the laid back 1970s transformed into an MTV generation that fueled itself with (briefly) New Coke, parachute pants, Mr. T and Miami Vice. You may already know about “the car”- the one that taught Tom Cruise how to drive a stick and made famous the line “Porsche, there is no substitute”, but as the decade closed and styles began to change so too did the vastly misunderstood yet gorgeous 928.

Enter the 1989 Clubsport

Highlights

• A matching numbers German-market example initially retained by the Porsche factory per its Porsche Germany build sheet
• One of just seven lightweight 928s optioned with the “M637” Club Sport package built for 1989, one of Porsche’s rarest creations
• Special lightweight Club Sport package features include the absence of a sunroof, a lighter exhaust, a lack of undercoating, and lighter magnesium-alloy wheels
• Special sporting Club Sport package features include manual sport seats, short throw shifter, limited-slip differential, lowering by 20 mm, 150 mm wider track, and special badging
• Fitted from the factory with special “SP” stamped “M28/41” 5.0-liter V8 engine producing a conservatively factory rated 320 PS
• The only 928 Club Sport finished in Forest Green Metallic (Tannengrün Metallic) over a Cashmere Beige and Black leather interior
• Over € 65,000 invested between 2019 and 2021

Description

Chassis No. WP0ZZZ92ZKS840540
Engine No. 81K 00246 SP

There are rare Porsches that many know about — the 997-generation 911 Speedster (356 total) and 2010 911 Sport Classic (250 total) come to mind — yet there are those special cars built in low double-digit quantities that are exceedingly uncommon and far less known. Take this lightweight series of 911s, for example. Just 20 1967 911 Rs were produced, only 21 1984 911 SCRS, and just seven years later Porsche produced 22 Carrera 4 Lightweights. The 911 wasn’t the only model in Porsche’s lineup that received the lightweight treatment in small quantities, and it was the 928 on which Porsche engineers interestingly focused their weight saving efforts.

Their initial efforts focused on four prototypes gifted as company cars to each of the four factory 962 sports racing prototype drivers that season: Jochen Mass, Derek Bell, Hans Stuck, and Bob Wollek. All four loved the changes made to their prototypes intended to comfortably transport them across the continent at high rates of speed to the European races. In fact, Derek Bell enjoyed his so much he kept it as his daily driver for 18 years! With such a positive reception, Porsche made these changes available to the public the next year as “M637” Club Sport option. Those 928s optioned with M637 were approximately 120 kilograms lighter than their S4 stablemates due to the removal of comfort features like the rear wiper, a portion of the wiring harness, and PVC undercoating.

Heavier parts were lightened. The exhaust system, a smaller AC compressor, and magnesium wheels special to the Club Sport were added. In addition, the 928 Club Sport featured stronger acceleration due to a modified final drive ratio, short shifter, a limited-slip diff, a transmission without vibration dampening, and sports seats. The Club Sport also featured lowering by 20 millimeters and a 150 millimeter wider track along with special badging. Finally, the Club Sport was fitted from the factory with a special “SP” stamped 5.0-liter V8 engine likely producing more than the conservatively estimated 320 PS, due to special camshafts, a 1 mm increase in valve lift, a modified engine control unit, and a higher rev limit. Following their tried-and-true path, Porsche, along with their racing drivers, developed a 928 with more power, lighter weight, and better handling — a true Porsche Club Sport!

This matching numbers 928 Club Sport on offer is one of just seven production lightweights built for 1989 and is the only example finished in Forest Green Metallic over a Cashmere Beige and Black leather interior. It was originally retained by Porsche AG as a special “Werkswagen” company car for longtime Porsche employee Bernd Kahnau. Kahnau was no mere employee. After his father’s passing – a longtime Porsche employee himself — in 1979, Kahnau was personally recruited to work for Porsche at the request of Ferry Porsche. The former BMW employee quickly became immersed in all manner of important development projects, most notably as a production planner for the 928, 911 Club Sport, 911 Speedster, and 911 models from the 993 to 991.

Beyond being equipped with the highly desirable Club Sport package, this rare 928 was optioned by Kahnau with air conditioning, a tinted windshield, and a Blaupunkt Bremen radio in addition to the sporting items inherent in ordering a Club Sport. It is said that Kahnau was very attached to his Club Sport, as the green on tan livery matched the colors of his English country house! He owned it for approximately two years before it eventually landed with an individual based in Switzerland, where it was located until at least 2019.

Most recently, under current ownership, this matching numbers Club Sport has been the focus of a lavish amount of attention totaling over €65,000 worth of repairs and servicing between 2019 and 2021. Most importantly, following a 33-point Porsche inspection at 120,800 kilometers in 2019, the car visited Landsharks in 2020 for a new water pump, fresh coolant and engine oil, filters, and an oil pan gasket. At the same time the thermostat was replaced, along with the clutch disk and pressure plate, and engine electrical items including the ignition cable, distributor cap and rotor, spark plugs, and two knock sensors.

Underneath, the Club Sport received new brake discs and pads front and rear, a new brake master cylinder, the replacement of the center catalytic converter with lambda probe, and a fresh battery. This work along with other sundry items and parts totaled €22,736.91. Following an accident to the rear of the car, additional invoices from Landsharks that year show the Club Sport was the recipient of cosmetic attention as well with interior saddlery work, a new windshield, new seals, unibody work to repair the rear accident damage, and fresh paint in its original shade of Forest Green Metallic. In 2021, the air conditioning system was refurbished with a new compressor, dryer and a system clean with new liquids and fluids. Today, this rare, well-preserved 928 Club Sport with its matching number engine and transmission is offered with 122,748 kilometers at cataloging with a copy of its Porsche Germany build sheet, recent service paperwork, and manuals.

For the Silo, Bastian Voigt/Hagerty.