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Buick Roadmaster convertible 

1948, USA

engines/performance

engines:
years cyl./valv. compr. displacement

power

  specific fuel torque  
48: i8/16V 6.6:1 5247cc.(320.2ci)

144SAE-hp

@3600rpm

27.4 hp/l 2bbl ?lb-ft. (?Nm)

@?rpm

48: i8/16V 6.9:1 5247cc.(320.2ci)

150SAE-hp

@3600rpm

28.6 hp/l 2bbl ?lb-ft. (?Nm)

@?rpm

performance:
engine topspeed 0-50mph 0-62mph 0-100mph 0-124mph

1/4mile

mileage (US-gallon)
5.2l144hp: ?kph/?mph ?s ?s ?s ?s

?s@?mph/?kph

? l/100km? mpg
5.2l150hp: ?kph/?mph ?s ?s ?s ?s

?s@?mph/?kph

? l/100km? mpg

tyres/transmission

tyres front/rear: 8.20 x 15
transmission/drive wheel: 3-speed/RWD, Dynaflow optional

dimensions/weight

length x width x height: 5525 x 1980 x 1680 mm (217.5 x 78.0 x 66.1 in)
wheelbase - tread f/r: 3277 mm - 1502/1580 mm (129.0 in - 59.1/62.2 in)
some calculations: base aera: 10.94 m² (117.8 sq.ft.) - frontal aera: ~2.74 m² (~29.5 sq.ft.) - LxWxH: 18.38 m³ (649.0 cu.ft.)
aerodynamics: coefficient of drag (cd): ? - drag area: ? m² / ? sq.ft.
weight: 1957 kg (4315 lb)
power/weight-ratio: 13.0 - 13.6 kg/hp (28.8 - 30.0 lb/hp) 74 - 77 hp/ton

price/production

base-price: 2,837 $  
production: 11,367

The 1947 and 1948 Buick Roadmaster differed only by the
Roadmaster script on the front fender.

Pictures taken at the "Street Mag Show 2009" in Hanover, Germany
 
  Buick Roadmaster 1948   Buick Roadmaster 1948   Buick Roadmaster 1948  
             
  Buick Roadmaster 1948   Buick Roadmaster 1948   Buick Roadmaster 1948  
             
  Buick Roadmaster 1948   Buick Roadmaster 1948   Buick Roadmaster 1948  
             
  Buick Roadmaster 1948          
             

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