In March 1934, Daimler-Benz unveiled a new eight-cylinder car at
the International Motor and Motorcycle Show in Berlin. The
five-liter supercharged newcomer appeared in a single
Autobahn-Kurierwagen body built for high speed, with the sales
brochure calling it the "star attraction of the show."
The new model carried the internal code W 29. Its M 24 engine was
developed from the 380's eight, with bore and stroke each enlarged
by 8 mm and a new crankshaft to match. Output rose to 100
horsepower, or 160 with the Roots blower engaged at full throttle,
placing the new car among the most powerful and sophisticated
automobiles of the prewar era. The 'K' in its name stood for
Kompressor, or supercharger in English. An overdrive transmission
with semi-automatic shifting let the driver move from direct third
into overdrive without touching the clutch.
By June 1934, the price list carried seven versions, from a
four-door saloon and a two-seat roadster to Cabriolets A, B, and C
and an open tourer, each priced at 22,000 Reichsmarks. Each car was
built largely to its customer's wishes, with bodies from the
special vehicle production facility at Sindelfingen under Hermann
Ahrens, renowned for the beauty and quality of its work.
Two chassis were offered on a 129.5-inch wheelbase. The second set
the engine, steering, and seats more than four inches further back,
and it carried the sportiest bodies. The first Spezial Roadster
appeared at the Paris Motor Show in October 1934. Paris saw a new
version a year later, its long tail hiding the spare wheel beneath
a sweeping rear deck. At 28,000 Reichsmarks, it was the most
expensive W 29 of all. Untert�rkheim built 342 chassis of the
five-liter car, and just 29 were the illustrious Spezial
Roadsters.
This 500 K began life as a Dutch commission, delivered to its first
owner on 2 October 1934 by Reijenga's Automobielbedrijf, the
Mercedes-Benz dealer in The Hague, Netherlands. As built, the
chassis wore a four-seat, four-window open top Cabriolet B body
from the factory coachworks at Sindelfingen.
By the 1960s, the car had joined the collection of Baron J.O.
Raben-Levetzau, the Danish nobleman whose Aalholm Automobil Museum
in Nysted ranked among the most important private collections in
Europe. The Baron had the chassis rebodied as an open two-seater
inspired by the Spezial Roadster. It was a loose interpretation of
the factory design. Much of its underlying structure followed the
Cabriolet B, and it never had a working top. In this form, the car
remained on display at Aalholm for more than 40 years.
The Aalholm collection was sold in August 2012, and this 500 K left
Denmark for the United States with its next owner. The new owner
had a clear aim. The chassis would receive the long-tail Spezial
Roadster body it might have worn had its first buyer chosen
differently, built with traditional coachbuilding methods
throughout. Jim Friswold of Oregon, a name well known among 500 K
and 540 K owners, oversaw the project from 2012 to 2018.
Cass Nawrocki of Minnesota formed the body by hand, shaping steel
over a white ash frame. The result carries the details that define
the long-tail Spezial Roadster. A V-shaped radiator sits well back,
and external exhaust pipes emerge through the sides of the bonnet.
The doors are rear-hinged, the windscreen is a vee, and a rumble
seat is tucked into the tail. When lowered, the Dark Brown top
disappears under a painted cover. Most important of all, the spare
wheel rides out of sight beneath a flush cover which sets this car
apart from nearly every other Spezial Roadster. That covered-spare
tail is arguably the ultimate design of every factory-bodied 500 K
and 540 K. It is believed that just two 500 K Special Roadsters
were built in this style. The 540 K added six more, and only three
of those are known to exist today.
The car is finished in burgundy with a tan leather interior, and
the paint continues onto the 17-inch wire wheels. Ken Dickman
trimmed the cabin, edging the hides in burgundy to tie the two
together. Behind the four-spoke steering wheel sits a set of Veigel
instruments, including a 200-km/h speedometer and a 4,000-rpm
tachometer.
The matching-numbers supercharged eight-cylinder engine was rebuilt
and is reported to have been enlarged to approximately 5.1 liters
from its factory 5,018-cc displacement. Its supercharger and the
Dewandre vacuum brake servo were overhauled as well. An electric
fuel pump is one of the few concessions to modern use, and the
original reserve fuel tank remains in place. The four-speed gearbox
with its overdrive fourth gear is retained, as is the
pedal-operated chassis lubrication system, which allows the running
gear to be oiled from the driver's seat.
Impeccably restored and presented throughout, the car made its show
debut in 2019 and quickly found favor with judges. Over that single
season, it was named Best in Show at Keels & Wheels, Park Place,
the Hilton Head Island Motoring Festival, and the Carmel Mission
Classic. Westlake added a People's Choice award. Under current
ownership, the car was shown at the 2025 Concours at Wynn Las
Vegas. The project is documented by a 240-page build book, which
details the restoration process step by step, including the ash
framing beneath the steel bodywork. More than 2000 restoration
photographs, as well as an abundance of restoration invoices
accompany the sale of the striking Mercedes-Benz, in addition to a
copy of the original commission sheet further documenting the car's
provenance and award-winning restoration.
Original long-tail Spezial Roadsters are seldom available for sale,
and very few individuals will ever have the opportunity to drive
one. This example offers a rare chance to experience an authentic
supercharged 500 K in its most captivating form. Its hand-built
Spezial Roadster style coachwork, constructed using period-correct
methods to absolutely exacting standards, has already been rewarded
with multiple concours awards. From the driver's seat, the long
Burgundy bonnet stretches forward, the vee windscreen frames the
road, and the rebuilt matching-numbers eight-cylinder engine
delivers its power through the overdrive top gear. Long, low, and
impossibly elegant, it carries all the glamour that made the
Spezial Roadster the defining sporting Mercedes-Benz of the 1930s,
and few automobiles of any era command attention quite like it.
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