Motor City

25 July 2015

The Howard & Norma Weaver Collection

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Lot 171

1950 Buick Roadmaster Convertible

  • Chassis no. 15848949

Sold for $55,000


Series 70. 152 bhp, 320.2 cu. in. OHV inline eight-cylinder engine, two-speed Dynaflow automatic transmission, front and rear coil-spring suspension, and four-wheel hydraulic drum brakes. Wheelbase: 126.25 in.

  • Offered from the collection of Howard and Norma Weaver
  • High-quality older restoration
  • Top-of-the-line Roadmaster


The beginning of Buick’s new post-war designs came in 1949, as did some new models. Innovations included the introduction of the two-speed Dynaflow transmission and solidly built, heavily trimmed automobiles that created a new, modern look, different from the flowing Art Deco designs of the 1930s and 1940s. At the top of the line was the posh Series 70 Roadmaster. On the 1950 models, the Roadmaster, along with other Buicks, was distinguished by a large, bright, “toothy” grille that descended below the car, giving it a highly distinctive and unique front-end appearance.

The Roadmaster Convertible offered here, one of approximately 3,000 built, was professionally restored to exacting standards from a good, solid, original car. It has scarcely been driven since its completion and has enjoyed climate-controlled display in the Howard and Norma Weaver Collection. The restoration remains in very good older condition, with excellent fit and finish of the straight, original body panels, which are finished in period-correct dark metallic blue. Most of the chrome and stainless-steel trim items have been professionally refinished and remain in fine overall condition, as does the interior, upholstered in brown leather with matching door panels and carpets, and the tan fabric Haartz convertible top. Importantly, the power top mechanism has been restored to function correctly.

Underneath the car shows quality restoration work and hardly any signs of use; the engine is extremely clean and highly detailed and has all of the correct hose clamps, decals, and labels.

This is one of the finest automobiles in the Weaver Collection as well as one of the nicest 1950 Roadmaster Convertibles in existence.

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