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Lot 302

302: 1957 Buick Roadmaster Convertible Coupe

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Description

Chassis #: 7D4021740

Model 76C. 300 bhp, 364 cu. in. V-8 engine, single four-barrel carburetor, “Twin-Turbine” Dynaflow automatic transmission, independent front suspension with A-arms and coil springs, semi-floating rear axle with coil springs, and four-wheel hydraulic drum brakes. Wheelbase: 127.5"

- Nut-and-bolt, body-off restoration
- Highly equipped and show quality

The Roadmaster was completely redesigned for 1954 and shared its new C-Body platform with the Super line. Updated for 1957 with a new body and a rakishly lower roofline, the Series 70 Roadmaster line was available in two- and four-door hardtop and convertible models, gaining nearly 10 inches in overall length. Buick’s now-iconic sweepspear side accents, front-fender “ventiports,” “Dagmar” bumpers and fully-radiused rear fenders reflected the stylistic legacy of Harley Earl. On two-door Roadmasters, a distinctive trio of bright chevrons enhanced the sweepspears as well, just ahead of the rear fender-wells.

The Roadmaster’s interior appointments included a padded dashboard, a wide variety of premium upholstery choices and a distinctive bright metallic overall dash motif, further reinforcing the Roadmaster’s decidedly upscale status. Of particular note, the interior of the Model 76C Convertible Coupe was even more luxuriously trimmed than its stable-mates in rich leather upholstery.

The Roadmaster was a strong performer and benefited from Buick’s growing involvement in NASCAR competition. The 322-cubic inch “Nailhead” V-8 engine, introduced in 1953, evolved into a 364-cubic inch, 300-bhp powerhouse by 1957. This power unit was shared with the Century line and featured a 10.0:1 compression ratio, topped with either a Carter or a Rochester four-barrel carburetor. The Roadmaster’s standard Dynaflow automatic transmission combined strong acceleration capabilities with good fuel economy.

Just 4,364 Roadmaster convertibles were built for 1957, priced from $4,066 when new. This beautiful, rarely driven example is a showpiece of the current owner’s private collection and has benefited from a nut-and-bolt, body-off restoration and proper care. It is handsomely finished in two-tone black and red. The brightwork is excellent, and the car has a black Everflex top with a red top boot, a red leather interior and 40-spoke chrome wire wheels wrapped in whitewall tires.

The Roadmaster is well equipped for comfortable cruising with power brakes, power steering, power windows, Wonder Bar pushbutton AM radio and power antenna, a heater/defroster and a clock. The engine bay is beautifully finished and highly detailed with correct finishes and components, including the glass windshield-washer bottle and reproduction Delco battery, reflecting the rest of the Roadmaster’s high quality and impressive level of presentation. This 1957 Buick Roadmaster convertible truly epitomizes 1950s American motoring.

Buyer's Premium

10%

Estimate $125,000 – $150,000
Starting Bid $60,000
live auction started on
Us Auction
10:00 AM - Jan 21, 2011
Ended
Auctioneer
RM Auctions

Contact

5536 County Rd 11A
Auburn, IN 46706
United States


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